RESEARCH OF BUILDING MATERIALS

Thermogravimetric analysis of phase transitions in cement compositions mixed by sodium silicate solution

Vestnik MGSU 1/2014
  • Fedosov Sergey Viktorovich - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Scienc- es, Professor, member, Russian Academy of Architectural and Building Sciences (RAASN), President, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Akulova Marina Vladimirovna - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, Professor, counselor, Russian Academy of Architectural and Building Sciences (RAASN), head, Department of Con- struction Materials Science, Special Technologies and Technological Facilities department, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Slizneva Tatyana Evgenyevna - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, Associate Professor, Department of Higher and Applied Mathematics, Statistics and Information Technologies, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Potemkina O.V. - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, doctoral student, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 111-118

This paper presents a study of the capability to modify cement by mechanical activation of sodium silicate water solution. Admixtures or blends of binding agents were employed for modifying concrete properties. The liquid glass is applied to protect from chemically or physically unfavorable environmental impacts, such as acidic medium and high temperature. The sodium silicate is a high-capacity setting accelerator. The increasing of the liquid glass proportion in the mix leads to the degradation of the cement paste plasticity and for this reason it is necessary to reduce the amount of liquid glass in the cement paste. The activation of dilute water solution of sodium silicate into rotary pulsating apparatus directly before tempering of the cement paste is an effective way to decrease mass fraction of liquid glass in the cement paste. The results of the combined influence of liquid glass and mechanical activation on physicochemical processes taking place in cement stone are represented in this research. Thermogravimetric analysis was used in order to study cement blends. Thermogravimetric analysis of modified cement stone assays was performed by thermo analyzer SETARAM TGA 92-24. The results of the analysis of phase transition taking place under high-temperature heating of cement stone modified by the mechanical activation of the water solution of the sodium silicate were introduced. Thermograms of cement stone assays were obtained at different hardening age. The comparison of these thermograms allows us to come to a conclusion on the formation and the retention during long time of a more dense structure of the composite matrix mixed by the mechanical activation of sodium silicate water solution. The relation between the concrete composition and its strength properties was stated. Perhaps, the capability of modified concrete to keep calcium ions in sparingly soluble hydrosilicates leads to the increase in its durability and corrosion resistance.

DOI: 10.22227/1997-0935.2014.1.111-118

References
  1. Amjad Tariq, Ernest K. Yanful. A Review of Binders Used in Cemented Paste Tailings for Underground and Surface Disposal Practices // Jour. of Environmental Management. 2013, vol. 131, no. 12, pp. 138—149.
  2. Korneev V.I., Danilov V.V. Rastvorimoe i zhidkoe steklo [The Soluble and Liquid Glass]. Sankt-Petersburg, Stroyizdat Publ., 1996, 216 p.
  3. Brykov A.S. Aqueous Jellies in the K2O-SiO2-H2O System and their Use in Technology of Fire-resistant Glass. Glass Processing Days 2007: Conference Proceedings Book. Tampere, pp. 350—351.
  4. Mikhaylenko N.Yu., Klimenko N.N., Sarkisov P.D. Stroitel'nye materialy na zhidkostekol'nom svyazuyushchem. Chast' 1. Zhidkoe steklo kak svyazuyushchee v proizvodstve stroitel'nykh materialov [Construction Materials on Liquid Glass Binder. Part 1. Liquid Glass as a Binder in Construction Materials Production]. Tekhnika i tekhnologiya silikatov [Technologies of Silicates]. 2012, vol. 19, no. 2, pp. 25—28.
  5. Shestakov S. Study the Possibility of Non-parametric Amplification Multibubble Cavitation. Applied Physics. Vol. 6, pp. 18—24.
  6. Promtov M.A. Perspektivy primeneniya kavitatsionnykh tekhnologiy dlya intensifikatsii khimiko-tekhnologicheskikh protsessov [Prospects of Using Cavitating Technologies in order to Intensify Chemical and Technological Processes]. Vestnik TGTU [Proceedings of Tver State Technical University]. 2008, vol. 14, no. 4, pp. 861—869.
  7. Vorob'ev Yu.V. Osnovy teorii mekhanoaktivatsii zhidkikh sred [Fundamentals of the Theory of Mechanical Activation of Liquid Medium]. Vestnik TGTU [Proceedings of Tver State Technical University]. 2013, vol. 19, no. 3, pp. 608—613.
  8. Akulova M.V., Strel'nikov A.N., Slizneva T.E., Padokhin V.A., Bazanov A.V. Mekhanoimpul'snaya aktivatsiya zhidkofaznykh funktsional'nykh dobavok v tsementy i betony [Mechanic and Impulsive Activation of Liquid-phase Functional Additives in Cements and Concretes]. Aktual'nye problemy sovremennogo stroitel'stva: materialy Mezhdunarodnoy nauchno-prakticheskoy konferentsii [Current Problems of Contemporary Construction: Materials of International Scientific and Practical Conference]. Penza, PGUAS Publ., 2011, pp. 5—8.
  9. Topor N.D., Ogorodova L.P., Mel'chakova L.V. Termicheskiy analiz mineralov i neorganicheskikh soedineniy [Thermal Analysis of Minerals and Inorganic Compounds]. Moscow, MGU Publ., 1987, 190 p.
  10. Ramachandran V.S., Paroli R.M., Beaudoin J.J., Delgado A.H. Handbook of Thermal Analysis of Construction Materials. Noyes Publications William Andrew Publishing, 2002, 692 p.
  11. Brown M.E. Introduction to Thermal Analysis. Techniques and Applications. 2-nd ed., Kluwer Academic Publishers, Dordrecht, 2001, 264 p.
  12. Fedosov S.V., Akulova M.V., Slizneva T.E., Akhmadulina Yu.S., Padokhin V.A., Bazanov A.V. Svoystva tsementnykh kompozitov na mekhanoaktivirovannom rastvore silikata natriya [Properties of Cement Composites by the Mechanoactivation of Solution of the Sodium Silicate]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 1, pp. 57—62.

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A simple method to definethe heat conductivity of a limited plate

Vestnik MGSU 2/2014
  • Evdokimov Andrey Sergeevich - “T-NANO” LLC Chief Executive Officer, “T-NANO” LLC, 9 bld 3 Dolgorukovskaya str., Moscow, 127006, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kozintsev Viktor Mikhaylovich - Institute for Problems in Mechanics RAS (IPMekh RAN) Candidate of Physical and Mathematical Sciences, senior research worker, Institute for Problems in Mechanics RAS (IPMekh RAN), 101-1 Prospekt Vernadskogo, Moscow, 119526, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mel'nik Oleg Eduardovich - Lomonosov Moscow State University (MGU) Doctor of Physical and Mathematical Sciences, Correspondent Member of the RAS, Head of the laboratory, Institute of Mechanics, Lomonosov Moscow State University (MGU), 1 Michurinskiy prospekt, 119192, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Popov Aleksandr Leonidovich - Institute for Problems in Mechanics RAS (IPMekh RAN) Doctor of Physical and Mathematical Sciences, Professor, leading research worker, Institute for Problems in Mechanics RAS (IPMekh RAN), 101-1 Prospekt Vernadskogo, Moscow, 119526, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Stoyanov Sergey Viktorovich - “T-Services” CJSC Development director, “T-Services” CJSC, 113/1 Leninskiy Prospekt, Moscow, 117198, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Chelyubeev Dmitriy Anatol'evich - Institute for Problems in Mechanics RAS (IPMekh RAN) junior research worker, Institute for Problems in Mechanics RAS (IPMekh RAN), 101-1 Prospekt Vernadskogo, Moscow, 119526, Russian Federatio; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 114-124

To the present moment there are a lot of ways to define heat conductivity and thermal diffusivity of solid bodies. The schemes of determining heat conductivity, which use transient methods, usually include a heater and a cooler. The sample is placed in between them. The temperature and temperature differential is determined using several thermocouples.The authors present a method of determining the thermal characteristics of a sample in the form of a rectangular plate, allowing to apply only one thermocouple, which leads to a simple analytical expression for thermal diffusivity. The described method provides high-precision determination of thermal diffusivity of the body of small size and with the accuracy sufficient for practice — conductivity coefficient. The method uses a simple mathematical model and minimal hardware resources compared to other methods. The exception is the heat-insulating materials. The determination of their thermal conductivity using this method can lead to poor accuracy.

DOI: 10.22227/1997-0935.2014.2.114-124

References
  1. Tikhonov A.N., Samarskiy A.A. Uravneniya matematicheskoy fiziki [Equations of Mathematical Physics]. Moscow, Nauka Publ., 1972, 735 p.
  2. Lykov A.V., editor. Metody opredeleniya teploprovodnosti i temperaturoprovodnosti [Methods of Determining Thermal Conductivity and Diffusivity]. Moscow, Energiya Publ., 1973, 336 p.
  3. Izmereniya v promyshlennosti: Spravochnik [Measurements in Manufacturing Industry: Reference Book]. Moscow, Metallurgiya Publ., 1990, vol. 2, 384 p.
  4. Vishu Shah. Handbook of Plastics Testing and Failure Analysis. Hoboken, Wiley, 2007, 648 p.
  5. Patent of the Russian Federation RU2075068 C1, SU445892 A1, RU2456582, RU2024013 C1, SU1822958 A1, RU2179718.
  6. Lam T.T., Yeung W.K. Inverse Determination of Thermal Conductivity for One-Dimensional Problems. Journal of Thermophysics and Heat Transfer. 1995, vol. 9, no. 2, pp. 335—344. DOI: 10.2514/3.665.
  7. Lin J.H., Cheng T.F. Numerical Estimation of Thermal Conductivity from Boundary Temperature Measurements. Numer. Heat Transfer Part A.32., 1997, pp. 187—203.
  8. Fizicheskie velichiny. Spravochnik [Physical Quantities. Reference Book]. Moscow, Energoatomizdat Publ., 1991, 1232 p.
  9. Prudnikov A.P., Brychkov Yu.A., Marichev O.I. Integraly i ryady. Elementarnye funktsii [Integrals and Series. Elementary functions]. Moscow, Fizmatlit Publ., 2002, 632 p.
  10. Rivkin S.L., Aleksandrov A.A. Teplofizicheskie svoystva vody i vodyanogo para [Thermal Properties of Water and Water Steam]. Moscow, Energiya Publ., 1980, 424 p.

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Photocatalyticpaving concrete

Vestnik MGSU 2/2014
  • Lyapidevskaya Ol'ga Borisovna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Building Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Fraynt Mikhail Aleksandrovich - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Building Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 125-130

Today bituminous concrete is a conventional paving material. Among its advantages one can name dustlessness and noiselessness, fine wear (up to 1 mm a year) and fine maintainability. As the main disadvantages of this material one can name high slipperiness under humidification, low durability and weather resistance. Besides that, during placement of the bituminous concrete a lot of different air pollutants are emitted, which are harmful for environment and human’s health (they are listed in the paper according to the US Environmental Protection Agency materials). As an alternative, one can use cement-concrete pavement, which is in many ways more efficient than the bituminous concrete. It is proposed to enhance environmental performance of the cement-concrete pavement via usage of photocatalysis. The mechanism of different photocatalytic reactions is described in the paper, namely heterogeneous and homogeneous photocatalysis, photo-induces, photoactivated catalysis and catalytical photoreactions. It is pro-posed to use heterogeneous photocatalysis with titanium dioxide as a photocatalyst. The mechanism of photo oxidation of air contaminants, with the usage of titanium dioxide is2described. The paper sets problems, connected with the sensibilization of TiOto thevisible light (it is proposed to use titanium dioxide, doped with the atoms of certain elements to increase its sensibility to the visible light) and with the development of a new photocatalytic paving concrete, which will meet the requirements, specified for paving in the climatic and traffic conditions of the Russian Federation.

DOI: 10.22227/1997-0935.2014.2.125-130

References
  1. Tran Tuan My, Korovyakov V.F. Samouplotnyayushchiesya betonnye smesi dlya dorozhnogo stroitel'stva [Self-compacting Concrete Mixtures for Road Building]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 3, pp.131—137.
  2. Hunger M., H?sken G., Brouwers H.J.H. Photocatalysis Applied to Concrete Products — Part 1: Principles and Test Procedure. ZKG International. 2008, vol. 61, no. 8, pp. 77—85.
  3. Mueses M.A., Machuca-Martinez F., Puma G.L. Effective Quantum Yield and Reaction Rate Model for Evaluation of Photocatalytic Degradation of Water Contaminants in Heterogeneous Pilot-scale Solar Photoreactors. Chemical Engineering Journal. 2013, vol. 215—216, pp. 937—947. DOI: 10.1016/j.cej.2012.11.076.
  4. Remont asfal'tobetonnykh pokrytiy avtomobil'nykh dorog: obzornaya informatsiya. Federal'noe dorozhnoe agentstvo Ministerstva transporta Rossiyskoy Federatsii [Review: Maintenance of the Bituminous Concrete Pavements of Motorways. Federal Highway Agency of the Ministry of Transport of the Russian Federation]. 2004.
  5. Malato S., Fern?ndez-Ib??ez P., Maldonado M.I., Blanco J., Gernjak W. Decontamination and Disinfection of Water by Solar Photocatalysis: Recent Overview and Trends. Catalysis Today. 2009, vol. 147, no. 1, pp. 1—59. DOI: 10.1016/j.cattod.2009.06.018.
  6. Li D., Haneda H., Labhsetwar N.K., Hishita S., Ohashi N. Visible-light-driven Photocatalysis on Fluorine-doped TiO2 Powders by the Creation of Surface Oxygen Vacancies. Chemical Physics Letters. 2005, vol. 401, no. 4—6, pp. 579—584. DOI:10.1016/j.cplett.2004.11.126.
  7. Zaynullina V.M., Zhukov V.P., Krasil'nikov V.N., Yanchenko M.Yu., Buldakova L.Yu., Polyakov E.V. Elektronnaya struktura, opticheskie i fotokataliticheskie svoystva anataza, dopirovannogo vanadiem i uglerodom [Electronic structure, optical and photocatalytical properties of anatase, doped with vanadium and carbon]. Fizika tverdogo tela [Solid State Physics]. 2010, vol. 52, no. 2, pp. 253—261.
  8. Osborn D., Hassan M., Asadi S., White J. Durability Quantification for a TiO2 Photocatalytic Concrete and Asphalt Pavements. Transportation Research Board 92nd Annual Meeting. 2013, no. 13-0901.
  9. Chen T.T., Chang I.C., Yang M.H., Chiu H.T., Lee C.Y. The Exceptional Photo-catalytic Activity of ZnO/RGO Composite via Metal and Oxygen Vacancies. Applied Catalysis B: Environmental. 2013, October—November, vol. 142—143, pp. 442—449. DOI: 10.1016/j.apcatb.2013.05.059.
  10. Shintre S.N., Thakur P.R. Environmental Applications of Nanocrystalline TiO2 in Combination with H2O2. International Journal of Green Nanotechnology. 2012, vol. 4, no. 4, pp. 430—439. DOI: 10.1080/19430892.2012.739479.

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Choosing mineral carrier of nanoscale additives for asphalt concrete

Vestnik MGSU 3/2014
  • Inozemtsev Sergey Sergeevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, test engineer, Research and Educational Center on "Nanotechnology", Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7-499-188-04-00; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Korolev Evgeniy Valer'evich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Adviser, Russian Academy of Architectural and Building Sciences (RAACS), director, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7-499-188-04-00; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 158-167

At present time the operation life of the majority of roads is essentially shorter than required. The reason for it is the increase in traffic intensity and axle loads of automobile transport. The obvious reasons for early wear of roads are the low quality of the components used and low industrial standards while producing asphalt pavement. In this paper the mineral material was selected as a carrier of nanoscale additives for asphalt. The optimal modes for grinding mineral materials were identified, which provide correspondence of their structure parameters with the developed model. The influence of different mineral nanomodifier carriers on the structure formation processes was estimated. It is shown that among a number of mineral materials diatomite has high activity in relation to the bitumen, because it has a highly porous structure. It is also shown that as a result of lighter fractions of bitumen adsorption on the border of phase interface, diatomite and bitumen changes from the free state to the film, and solvate shell of bitumen is saturated with asphaltenes. With the help of IR spectroscopy the authors defined the nature of the diatomite and bitumen interaction and proved that in the process of their interaction there occurs physical adsorption with additional absorption of bitumen components into the pore space of diatomite grains.

DOI: 10.22227/1997-0935.2014.3.158-167

References
  1. Levitin I.E. Analiticheskaya zapiska po teme: Povysheniye effektivnosti stroitel'stva i ekspluatatsii avtomobil'nykh dorog v rossiyskoy Federatsii [Analytical Note on the Topic: Raising the Efficiency of Construction and Operation of Roads in Russian Federation]. Sovmestnaya konferentsiya Obshchestvennogo soveta pri federal'nom dorozhnom agentstve Ministerstva transporta Rossiyskoy Federatsii, Obshchestvennoy palaty Rossiyskoy Federatsii [Joint Conference of the Public Council under the Federal Road Agency of the Ministry of Transport of the Russian Federation, the Public Chamber of the Russian Federation]. Moscow, 2011.
  2. Quintero Luz S., Sanabria Luis E. Analysis of Colombian Bitumen Modified With a Nanocomposite. Journal of Testing and Evaluation (JTE). 2012, vol. 40, no. 7, pp. 1—7. DOI: 10.1520/JTE20120198.
  3. Gotovtcev V.M., Shatunov A.G., Rumyantcev A.N., Sukhov V.D. Nanotekhnologii v proizvodstve asfal'tobetona [Nanotechnologies in Bitumen Concrete Production]. Nauchnye issledovaniya [Scientific Investigations]. 2013, no. 1, pp. 191—195.
  4. Vysotskaya M. Polymer-bitumen Binder with the Addition of Single-walled Carbon Nanotubes. Advanced Materials Research. 2013, vol. 699, pp. 530—534. DOI: 10.4028/www.scientific.net/AMR.699.530.
  5. Vysotskaya M., Kuznetsov D., Barabash D. Nano-structured Road Building Materials on the Basis of Organic Binders. Construction Materials. 2013, no. 4, pp. 20—23.
  6. Xiao F., Amirkhanian A., Amirkhanian S. Infl uence of Carbon Nanoparticles on the Rheological Characteristics of Short-Term Aged Asphalt Binders. Journal of Materials in Civil Engineering. 2011, no. 23 (4), pp. 423—431.
  7. Ye Chao, Chen Huaxin. Study on Road Performance of Nano-SiO2 and Nano-TiO2 Modified Asphalt. New Building Materials. 2009, no. 6, pp. 82—84.
  8. Xiao Peng, Li Xue-feng. Research on the Performance and Mechanism of Nanometer ZnO/SBS Modifi ed Asphalt. Journal of Highway and Transportation Research and Development. 2007, no. 6, pp. 12—16.
  9. Korolev E.V. Problemy i perspektivy nanotekhnologii v stroitel'stve [Problems and Prospects of Nanotechnology in the Construction]. Izvestia KazGASU [Proceedings of Kazan State University of Architecture and Engineering]. 2011, no. 2 (16), pp. 200—208.
  10. Inozemtcev S.S., Grishina A.N., Korolev E.V. Model' kompleksnogo nanorazmernogo modifikatora dlya asfal'tobetona [The Model of Complex Nanoscale Modifi er for Bitumen Concrete]. Regional`naya arhitektura i stroitel`stvo [Regional Architecture and Construction]. 2013, no. 3, pp. 15—21.
  11. Bazhenov Yu.M., Gar`kina I.A., Danilov A.M., Korolev E.V. Sistemnyy analiz v stroitel'nom materialovedenii [System Analysis in Construction Materials Science]. Moscow, MGSU Publ., 2012, 152 p.
  12. Korolev I.V. Model' stroyeniya bitumnoy plenki na mineral'nykh zernakh v asfal'tobetone [Structural Model of Bituminous Film on Mineral Grains in Bitumen Concrete]. Izvestiya vuzov. Stroitel'stvo i arkhitektura [News of Higher Educational Institutions. Construction and Architecture]. 1981, no. 8, pp. 63—67.
  13. Gorelyshev N.V. Vzaimodeystviye bituma i mineral'nogo poroshka v asfal'tovom betone [The Interaction of Bitumen and Mineral Powder in Asphalt Concrete]. Trudy HADI [Works of Kharkiv National Automobile and Highway University]. Kharkiv, 1955, vol. 16, pp. 10—23.
  14. Yadykina V.V. Vzaimosvyaz' donorno-aktseptornykh svoystv poverkhnosti mineral'nykh materialov s ikh reaktsionnoy sposobnost'yu pri formirovanii organo-mineral'nykh kompozitov [Interrelation of Donor-acceptor Properties of the Mineral Materials Surface with their Reactive Capacity in the Process of Organo-mineral Composites Formation]. Izvestiya vuzov. Stroitel'stvo [News of Higher Educational Institutions. Construction]. 2004, no.4, pp. 46—50.
  15. Yadykina V.V. Vliyaniye aktivnykh poverkhnostnykh tsentrov kremnezemsoderzhashchikh mineral'nykh komponentov na vzaimodeystviye s bitumom [The Infl uence of Active Surface Sites of Mineral Components Containing Stones and Soil on the Interaction with Bitumen]. Izvestiya vuzov. Stroitel'stvo [News of Higher Educational Institutions. Construction]. 2003, no. 9, pp. 75—79.
  16. Gorelysheva L.A. Teoreticheskiye aspekty vzaimodeystviya razlichnykh poroshkoobraznykh materialov s organicheskim vyazhushchim [Theoretical Aspects of Various Powder-like Materials Interaction with Organic Binder]. Puti ekonomii material'nykh i energeticheskikh resursov pri remonte i rekonstruktsii avtomobil'nykh dorog: sbornik nauchnykh trudov NPO Rosdornii [Ways of Saving Physical and Energy Resources in the Process of Repair and Reconstruction of Roads: Collection of Scientific Works of Rosdornii]. Moscow, MADI Publ., 1989, vol. 1, pp. 29—35.
  17. Inozemtcev S.S., Pozdyakov M.K., Korolev E.V. Issledovaniye adsorbtsionnosol'vatnogo sloya bituma na poverkhnosti mineral'nogo poroshka [Research of the Absorptionsolvate Layer of Bitumen on the Surface of the Mineral Filler]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 11, pp. 159—167.

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Method of calculating the parameters of concrete deformation in case of unloading from compressive stress

Vestnik MGSU 3/2014
  • Karpenko Nikolay Ivanovich - Scientific and Research Institute of Construction Physics of the Russian Academy of Architecture and Construction Sciences (NIISF RAASN) Doctor of Technical Sciences, Professor, member, Russian Academy of Architecture and Construction Sciences, Scientific and Research Institute of Construction Physics of the Russian Academy of Architecture and Construction Sciences (NIISF RAASN), 21 Lokomotivnyy proezd, Moscow, 127238, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Eryshev Valeriy Alekseevich - Togliatti State University (TGU) Doctor of Technical Sciences, Professor, advisor, Russian Academy of Architecture and Construction Sciences, Togliatti State University (TGU), 14 Belarusskaya st., Togliatti, 445667, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Latysheva Ekaterina Valer’evna - Togliatti State University (TGU) Candidate of Technical Sciences, Assosiate Professor, Togliatti State University (TGU), 14 Belarusskaya st., Togliatti, 445667, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 168-178

Deformation parameters of concrete are adequately studied under static uploading of samples until fracture. Methods of their determination during unloading (primarily due to the lack of experimental data) is not presented in the regulatory and scientific literature. That hinders the development of calculating methods of loadings for reinforced concrete structures, which vary according to certain cyclical regularities. The basis for computational models development for unloading are the results of the studies with short-term tests of concrete samples, where the sample is loaded to a predetermined level of compressive stresses, and then it is unloaded. The purpose of the research is to establish an analytical connection between stress and deformation parameters of concrete on axial loading and unloading branches with compressive stresses. The subject of the study is: axial and transverse deformation coefficient of transverse deformation volume deformations. The treated cycles have different values of maximum stress, including close to the limit values, taking into account the dilation of concrete. Permanent deformations during unloading are determined in increments of stress and strain by radial method. A connection is established between the initial elastic modulus of concrete and the modulus of deformation during unloading. On the basis of experimental data the analytical determination of the quantities depending on the residual strains for partial or complete unloading was offered. It was found out that in case of increasing stress level at the beginning of unloading the share of transverse strain increases and in case of full unloading, volume deformations increase. In case of unloading from the stress level, when dilatation property is manifested, they change the sign to the opposite, which is, become positive. The authors show a comparison of calculation results of the proposed method with experimental data obtained.

DOI: 10.22227/1997-0935.2014.3.168-178

References
  1. Karpenko N.I. Obshchie modeli mekhaniki zhelezobetona [General Mechanics Model of Reinforced Concrete]. Moscow, Stroyizdat Publ., 1996, 416 p.
  2. Bondarenko V.M., Kolchunov V.I. Raschetnye modeli silovogo soprotivleniya zhelezobetona [Computational Models of the Power Resistance of Reinforced Concrete. Moscow, ASV Publ., 2004, 471 p.
  3. Stavrov G.N., Rudenko V.V., Fedoseev A.A. Prochnost' i deformativnost' betona pri povtorno-staticheskikh nagruzkakh [Strength and Deformability of Concrete at Re-static Loads]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1986, no. 1, pp. 33—34.
  4. Bekker V.A., Sergeev S.M. Osobennosti razvitiya ob"emnykh deformatsiy betonov pri povtornom nagruzhenii szhimayushchey nagruzkoy [Development Features of Volume Deformations of Concrete under Repeated Loading by Compressive Load]. Izvestiya vuzov. Seriya Stroitel'stvo i arkhitektura [News of Higher Education Institutions. Series: Construction and Architecture]. 1983, no. 10, pp. 6—10.
  5. Merkin A.P., Fokin G.A. Kinetika razrusheniya betona pri tsiklicheskikh nagruzheniyakh [Kinetics of Concrete Destruction under Cyclic Loading]. Izvestiya vuzov. Seriya Stroitel'stvo i arkhitektura [News of Higher Education Institutions. Series: Construction and Architecture]. 1982, no. 1, pp. 75—77.
  6. Kuzovchikova E.A., Yashin A.V. Issledovanie vliyaniya malotsiklovykh szhimayushchikh vozdeystviy na deformativnost', prochnost' i strukturnye izmeneniya betona [Investigation of Influence of Low-cycle Compressive Effects on Deformation, Strength and Structural Changes of Concrete]. Izvestiya vuzov. Seriya Stroitel'stvo i arkhitektura [News of Higher Education Institutions. Series: Construction and Architecture]. 1986, no. 10, pp. 30—33.
  7. Rastorguev B.S., Yakovlev S.K. Sovershenstvovanie metoda rascheta ramnykh karkasov pri malotsiklovykh nagruzheniyakh [Improving the Method of Calculating Framework at Low-cycle Loading]. Issledovaniya karkasnykh konstruktsiy mnogoetazhnykh proizvodstvennykh zdaniy [Research of Frame Structures of Multi-storey Industrial Buildings]. 1985, pp. 117—126.
  8. Babich E.M., Pogorelyak A.P., Zalesov A.S. Rabota elementov na poperechnuyu silu pri nemnogokratno povtornykh nagruzheniyakh [Work of the Elements on the Transverse Force in Case of not Frequently Repeated Loadings]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1981, no. 6, pp. 8—10.
  9. Eryshev V.A., Latysheva E.V., Bondarenko A.S. Metodika eksperimental'nykh issledovaniy napryazhenno-deformirovannogo sostoyaniya lineynykh zhelezobetonnykh elementov pri osevom zagruzhenii povtornymi i znakoperemennymi nagruzkami [Methodology of Experimental Studies of the Stress-strain State of Linear Reinforced Concrete Elements under Axial Uploading by Repetitive and Alternating Loads]. Vektor nauki Tol'yattinskogo gosudarstvennogo universiteta [Vector of Science of the Togliatti State University]. 2010, no. 3 (13), pp. 51—56.
  10. Berg O.Ya., Shcherbakov E.N., Pisanko G.N. Vysokoprochnyy beton [High-strength Concrete]. Moscow, Stroyizdat Publ., 1971, 208 p.
  11. Karpenko N.I., Eryshev V.A., Latysheva E.V. K postroeniyu diagramm deformirovaniya betona povtornymi nagruzkami szhatiya pri postoyannykh urovnyakh napryazheniy [Developing Concrete Deformation Diagrams by Repeated Compression LOADS at Constant Stress Levels]. Stroitel'nye materialy [Construction Materials]. 2013, no. 6, pp. 48—52.
  12. Eryshev V.A., Toshin D.S. Diagramma deformirovaniya betona pri nemnogokratnykh povtornykh nagruzkakh [Strain Diagram of Concrete at Non-Frequent Repeated Loads]. Izvestiya vuzov. Seriya Stroitel'stvo [News of Higher Education Institutions. Series: Construction]. 2005, no. 10, pp. 109—114.
  13. Hillerborg A. Analysis of one single crack. Report to RILLEM. Tl. 50-FMC. 1981, p. 21.

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The influence of the scale effect and high temperatures on the strength and strains of high performance concrete

Vestnik MGSU 3/2014
  • Korsun Vladimyr Ivanovych - Donbas National Academy of Civil Engineering and Architecture (DonNASA) Doctor of Technical Sciences, Professor, Head, Department of Reinforced Concrete Structures, Donbas National Academy of Civil Engineering and Architecture (DonNASA), 2 Derzhavin str., Makeyevka, Donetsk region, Ukraine, 86123; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Korsun Artem Vladimirovych - Donbas National Academy of Civil Engineering and Architecture (DonNASA) Candidate of Technical Sciences, Associate Professor, Department of Reinforced Concrete Structures, Donbas National Academy of Civil Engineering and Architecture (DonNASA), 2 Derzhavin str., Makeyevka, Donetsk region, Ukraine, 86123; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 179-188

The most effective way to reduce the structure mass, labor input and expenses for its construction is to use modern high-performance concrete of the classes С50/60… С90/105, which possess high physical and mathematic characteristics. One of the constraints for their implementation in mass construction in Ukraine is that in design standards there are no experimental data on the physical and mathematic properties of concrete of the classes more than С50/60. Also there are no exact statements on calculating reinforced concrete structures made of high-performance concretes.The authors present the results of experimental research of the scale effect and short-term and long-term heating up to +200 ° C influence on temperature and shrinkage strain, on strength and strain characteristics under compression and tensioning of high-strength modified concrete of class C70/85. The application of high performance concretes is challenging in the process of constructing buildings aimed at operating in high technological temperatures: smoke pipes, coolers, basins, nuclear power plants' protective shells, etc. Reducing cross-sections can lead to reducing temperature drops and thermal stresses in the structures.

DOI: 10.22227/1997-0935.2014.3.179-188

References
  1. Korsun A.V. Osobennosti deformirovaniya i razrusheniya vysokoprochnykh modifitsirovannykh betonov v usloviyakh nagreva do +200 ?Ñ [Features of Deformation and Destruction of High Performance Modifi ed Concretes in Case of Heating up to +200 °Ñ]. Vestnik DonNASA [Proceedings of Donbas National Academy of Civil Engineering and Architecture]. 2007, no. 1(63), pp. 116—121.
  2. Korsun V.I. Napryazhenno-deformirovannoe sostoyanie zhelezobetonnykh konstruktsiy v usloviyakh temperaturnykh vozdeystviy [Stress and Strain State of Reinforced Concrete Structures under Thermal Impacts]. Makeevka, DonGASA Publ., 2003, 153 p.
  3. GOST 24452—80. Betony. Metody opredeleniya prizmennoy prochnosti, modulya uprugosti i koeffitsienta Puassona [Russian State Standard 24452—80. Concretes. Methods of Defining Prism Strength, Elastic Module and Poisson's ratio]. Moscow, Izdatel'stvo standartov Publ., 1980.
  4. CEN: Eurocode 2 (2004). Design of Concrete Structures: Part 1-1 General Rules and Rules for Buildings, EN 1992-1-1: 2004.
  5. Korsun V.I., Kalmykov Yu.Yu. Neodnorodnost' prochnostnykh i deformatsionnykh svoystv betona po ob"emu massivnykh elementov konstruktsiy [Heterogeneity of Strength and Strain Properties of Concrete According to the Size of Massive Construction Elements]. Sovremennye problemy stroitel'stva [Current Problems in Construction]. Donetsk, Donetskiy PromstroyNIIproekt, OOO «Lebed'» Publ. 2002, vol. 2, pp. 95—102.

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Efficiency of fiber reinforced concrete application in structures subjected to dynamic effects

Vestnik MGSU 3/2014
  • Morozov Valeriy Ivanovich - Saint-Petersburg State University of Architecture and Civil Engineering (SPbGASU) Doctor of Technical Sciences, Professor, head, Department of Reinforced Concrete and Masonry Structures, corresponding member of Russian Academy of Architecture and Construction Sciences, Saint-Petersburg State University of Architecture and Civil Engineering (SPbGASU), 4, 2 Krasnoarmeiskaya St., 190005, St. Petersburg, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pukharenko Yuriy Vladimirovich - Saint-Petersburg State University of Architecture and Civil Engineering (SPbGASU) Doctor of Technical Sciences, Professor, head, Department of Building Materials Technology and Metrology, councilor of Russian Academy of Architecture and Construction Sciences, Saint-Petersburg State University of Architecture and Civil Engineering (SPbGASU), 4, 2 Krasnoarmeiskaya St., 190005, St. Petersburg, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 189-196

Fiber reinforced concretes possess high strength under dynamic loadings, which include impact loads, thanks to their high structural viscosity. This is the reason for using them in difficult operating conditions, where increasing the performance characteristics and the structure durability is of prime importance, and the issues of the cost become less significant. Applying methods of disperse reinforcement is most challenging in case of subtle high-porous materials on mineral binders, for example foamed concrete. At the same time, the experiments conducted in Russia and abroad show, that also in other cases the concrete strength resistance several times increases as a result of disperse reinforcement. This doesn't depend on average density of the concrete and type of fiber used. In the article the fibre reinforced concrete impact resistance is analysed. Recommendations are given in regard to fibre concrete application in manufacture of monolithic floor units for industrial buildings and precast piles.

DOI: 10.22227/1997-0935.2014.3.189-196

References
  1. Pukharenko Yu.V. Nauchnye i prakticheskie osnovy formirovaniya struktury i svoystv fibrobetonov: avtoreferat dissertatsii doktora tekhnicheskikh nauk [Scientific and Practical Fundamentals of Fiber Concrete Structure and Properties. Thesis Abstract of the Doctor of Technical Sciences]. Saint Petersburg, 2004, 46 p.
  2. Lobanov I.A., Pukharenko Yu.V., Gurashkin Yu.A. Udarostoykost' fibrobetonov, armirovannykh nizkomodul'nymi sinteticheskimi voloknami [Shock Resistance of Fiber Concretes, Reinforced by Low-modulus Synthetic Fibers]. Tekhnologiya i dolgovechnost' dispersno-armirovannykh betonov [Technology and Durability of Fiber Reinforced Concretes]. Leningrad, LenZNIIEP Publ., 1984, pp. 92—96.
  3. Rabinovich F.N. Kompozity na osnove dispersno-armirovannykh betonov. Voprosy teorii i proektirovaniya, tekhnologii, konstruktsii [Composites Based on Fibre Reinforced Concretes. Problems of Theory and Design, Technologies, Structures]. Moscow, ASV Publ., 2004, 560 p.
  4. Tefaruk Haktanir, Kamuran Ari, Fatih Altun, Cengiz D. Atis, Okan Karahan. Effects of Steel Fibers and Mineral Filler on the Water-tightness of Concrete Pipes. Cement and Concrete Composites. 2006, vol. 28, no. 9, pp. 811—816. DOI: 10.1016/j.cemconcomp.2006.06.002.
  5. Bhikshma V., Manipal K. Study on Mechanical Properties of Recycled Aggregate Concrete Containing Steel Fibers. Asian Journal of Civil Engineering (Building and Housing). 2012, vol. 13, no. 2, pp. 155—164.
  6. Bhikshma V., Singh J.L. Investigations on Mechanical Properties of Recycled Aggregate Concrete Containing Steel Fibers. Indian Concrete Institute Journal. 2010, no. 4—9 (10), pp. 15—19.
  7. Shah P.S., Rangan V.K. Effect of Fiber Addition on Concrete Strength. Indian Concrete Journal. 1994, vol. 5, no. 2—6, pp. 13—21.
  8. Rasheed M.H.F., Agha A.Z.S. Analysis of Fibrous Reinforced Concrete Beams. Engineering and Technical Journal. 2012, no. 30 (6), pp. 974—987.
  9. Morozov V.I., Opbul E.K. Raschet prochnosti izgibaemykh fi brozhelezobetonnykh elementov s vysokoprochnoy armaturoy bez predvaritel'nogo napryazheniya [Strength Calculation of Bending Fiber Reinforced Concrete Elements with High-strength Reinforcement without Preliminary Strain]. Doklad 62 nauchnnoy konferentsii [Report of the 62nd Scientific Conference]. Saint Petersburg, SPbGASU Publ., 2005, Part 1, pp. 210—214.
  10. RTM-17-01—2002. Rukovodyashchie tekhnicheskie materialy po proektirovaniyu i primeneniyu stalefi brobetonnykh stroitel'nykh konstruktsiy [RTM-17-01—2002. Technical Guides on Designing and Calculating Steel Fiber Reinforced Concrete Building Structures]. Moscow, 2003.
  11. Rodov G.S., Leykin B.V., Sterin V.S. Opyt primeneniya stal'nykh fibr diametrom 2 mm i fibr iz otrabotannykh trosov dlya proizvodstva zabivnykh svay: Ekspress-inform [Experience of Using Steel Fibers of 2 mm Diameter and Fibers Made of Used Wires for Producing Drive Piles: Express-Inform]. Stroitel'stvo v rayonakh Urala i Zapadniy Sibiri SSSR. Seriya: Sovershenstvovanie bazy stroitel'stva [Construction in the Regions of South Ural and Western Siberia of the USSR]. TsBNTI Publ. 1987, no. 1, pp. 31—33.

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Nanostructured silicate polymer concrete

Vestnik MGSU 3/2014
  • Figovskiy Oleg L'vovich - International Nanotechnology Research Center "Polymate Ltd"; Kazan State Technical University (KAI) professor, Research and Development Director, Nanotech Industries, Inc. (USA), Academician of European Academy of Sciences, Russian Academy of Architecture and Construction Science and Research Executive Agency, Chairman of the UNESCO chair “Green Chemistry”, President of Israel Association of Inventors, Chief of laboratory "Environment Friendly Nanotechnologies", Kazan State Technical University (KAI), Research and Development Director, "Polymate Ltd", International Nanotechnology Research Center "Polymate Ltd"; Kazan State Technical University (KAI), P.O.B. 73, Migdal HaEmek, 23100, Israel; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Beilin Dmitriy Aleksandrovich - International Nanotechnology Research Center "Polymate Ltd" Head of Laboratory, International Nanotechnology Research Center "Polymate Ltd", P.O.B. 73, Migdal HaEmek, 23100, Israel; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 197-204

It has been known that acid-resistant concretes on the liquid glass basis have high porosity (up to 18~20 %), low strength and insufficient water resistance. Significant increasing of silicate matrix strength and density was carried out by incorporation of special liquid organic alkali-soluble silicate additives, which block superficial pores and reduce concrete shrinkage deformation. It was demonstrated that introduction of tetrafurfuryloxisilane additive sharply increases strength, durability and shock resistance of silicate polymer concrete in aggressive media. The experiments showed, that the strength and density of silicate polymer concrete increase in case of decreasing liquid glass content. The authors obtained optimal content of silicate polymer concrete, which possesses increased strength, durability, density and crack-resistance. Diffusive permeability of concrete and its chemical resistance has been investigated in various corroding media.

DOI: 10.22227/1997-0935.2014.3.197-204

References
  1. Beilin D.A., Borisov Yu.M., Figovskiy O.L., Surovtsev I.S. Patent RU 2408552. Nanostrukturiruyushchee svyazuyushchee dlya kompozitsionnykh stroitel'nykh materialov [Patent of Russian Federation 2408552. Nanostructured Binder for Composite Building Materials].
  2. Solomatov V.I., Bobryshev A.N., Khimmler N.G. Polimernye kompozitsionnye materialy v stroitel'stve [Polymer Composite Materials in Construction]. Moscow, Stroyizdat Publ., 1988.
  3. Figovsky O., Beilin D. Improvement of Strength and Chemical Resistance of Silicate Polymer Concrete. International Journal of Concrete Structures and Materials. 2009, vol. 3, no. 2, pp. 97—101. DOI: 10.4334/IJCSM.2009.3.2.097.
  4. Barbakadze V.S., Kozlov V.V., Mikul’skii V.G., Nikolov I.I. Durability of Building Structures and Constructions from Composite Materials. Science, 1995, 264 p.

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Identification of the corrosion in cement composites by means of statistical modeling

Vestnik MGSU 4/2014
  • Grishina Anna Nikolaevna - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, senior research worker, Research and Educational Center “Nanomaterials and Nanotechnologies”, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zemlyakov Andrey Nikolaevich - Administration of Civil Airports (Airfields) (AGA(A)) Candidate of Technical Sciences, Vice-director on Technology, chief engineer, Administration of Civil Airports (Airfields) (AGA(A)), 28, 5 Voykovskiy proezd, 125171, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Korolev Evgeniy Valer’evich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Advisor of RAACS, Prorector, Director of the “Nanomaterials and Nanotechnologies” Research and Educational Center, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Okhotnikova Kristina Yur’evna - Moscow State University of Civil Engineering (MGSU) master degree student, Institute of Construction and Architecture, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Smirnov Vladimir Alekseevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate professor, leading research worker, Research and Educational Center “Nanomaterials and Nanotechnologies”, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 87-97

The analysis of a large set of samples by means of several different methods - petrography, optical microscopy, IR- and Raman spectroscopy, porosimetry, DSC - is very common in practice of material science. After carrying out all the experiments, the groups of researchers obtain a wealth of raw data. The required final result, though, in most cases is to answer several - or even one - question concerning the state of the construction. Obviously, the transition from empirical information to the final decision can be done by means of non formal operations, for example expert appraisal. However, even for most intelligent experts it is quite difficult to perform such an evaluation. In order to condense the raw experimental data we propose simple and formal procedure. The offered method consists of several steps. The first step is to arrange data in such a way, that the rectangular matrix (of size M by N, where M and N are the number of samples and methods, respectively) is formed. This matrix can be called matrix of defectiveness. Then, for all pairs of columns of the mentioned matrix, we compute the Pearson's product-moment (correlation) coefficient; the result is the symmetric N by N matrix of accordance of methods. By means of summation over the rows of the later matrix we obtain information concerning the mutual correspondence of the methods - vector of significance (third step). And finally, at the fourth step, we compute the M scalar products of vector of significance and row of the matrix of defectiveness. The M obtained values are subject to further application by the descriptive statistics, and on the basis of this statistics the final decision can be made. The offered method was successfully applied in the practical task of identification of alcali-silica reaction.

DOI: 10.22227/1997-0935.2014.4.87-97

References
  1. Stanton T.E. Expansion of Concrete through Reaction between Cement and Aggregate. Proceedings of American Society of Civil Engineering. 1940, no. 10, pp. 1781—1811.
  2. Korolev E.V., Smirnov V.A., Zemlyakov A.N. Identifikatsiya novoobrazovaniy, obuslovlennykh shcheloche-silikatnoy reaktsiey [Identification of Alcali-Silica Reaction Outcomes]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 6, pp. 109—116.
  3. Diamond S. Alkali Reactions in Concrete Pore Solutions Effects. Proceedings of the 6th International Conference “Alkalis in Concrete”. 1983, pp. 155—166.
  4. Ferraris C.F. Alkali-Silica Reaction and High Performance Concrete. NIST, Building and Fire Research Laboratory, 1995, 24 p.
  5. Pan J.W., Feng Y.T., Wang J. T., Sun Q.C., Zhang C.H., Owen D.R.J. Modeling of Alkali-Silica Reaction in Concrete: a Review. Frontiers of Structural and Civil Engineering. 2012, no. 6, pp. 1—8. DOI: 10.1007/s11709-012-0141-2.
  6. Swamy R.N. Alkali-Silica Reaction in Concrete. New York, Blackie and Son, 1992, 348 p.
  7. Leger P., Cote P., Tinawi R. Finite Element Analysis of Concrete Swelling due to Alkali-Aggregate Reactions in Dams. Computers & Structures. 1996, vol. 60, no. 4, pp. 601—611. DOI: 10.1016/0045-7949(95)00440-8.
  8. Multon S., Toutlemonde F. Effect of Applied Stresses on Alkali-Silica Reaction-Induced Expansions. Cement and Concrete Research. 2006, vol. 36, no.5, pp. 912—920. DOI: 10.1016/j.cemconres.2005.11.012.
  9. Alnaggar M., Cusatis M., Di Luzio G. A Discrete Model for Alkali-Silica-Reaction in Concrete. Proceedings of the 8th International Conference on Fracture Mechanics of Concrete and Concrete Structures (FraMCoS). 2013, pp. 1315—1326.
  10. Alnaggar M., Cusatis M., Di Luzio G. Lattice Discrete Particle Modeling (LDPM) of Alkali-Silica Reaction (ASR) Deterioration of Concrete Structures. Cement and Concrete Composites. 2013, vol. 41, pp. 45—59. DOI: 10.1016/j.cemconcomp.2013.04.015.
  11. Islam M.S., Akhtar S.A. Critical Assessment to the Performance of Alkali-Silica Reaction (ASR) in Concrete. Canadian Chemical Transactions. 2003, vol. 1, no. 4, pp. 253—266. DOI: 10.13179/canchemtrans.2013.01.04.0026.
  12. Bock R.A. Decomposition Methods in Inorganic and Organic Chemistry. Verlag Chemistry, 1972, 232 p.
  13. Lundell G.E.F., Bright H.A., Hoffman J.I. Applied Inorganic Analysis with Special Reference to Analysis of Metals, Minerals, and Rocks. New York, John Wiley and Sons, 1953, 1034 p.
  14. Wilcox R. Introduction to Robust Estimation and Hypothesis Testing. New York, Elsevier, 2012, 690 p.
  15. Montgomery D.C., Runger G.C. Applied Statistics and Probability for Engineers. New York, Wiley, 2010, 792 p.
  16. Ben Haha M. Mechanical Effects of Alkali Silica Reaction in Concrete Studied by Sem-Image Analysis. PhD Thesis. Lausanne, EPFL, 2006, 232 p. DOI: 10.5075/epfl-thesis-3516.

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Design of ultra-lightweight concrete: towards monolithic concrete structures

Vestnik MGSU 4/2014
  • Yu Qing Liang - Eindhoven University of Technology PhD, Assistant Professor, Department of the Built Environment, Eindhoven University of Technology, Den Dolech 2, 5612 Az Eindhoven, the Netherlands; +31 40-247 2371; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Spiesz Przemek - Eindhoven University of Technology PhD, University Teacher, Department of the Built Environment, Eindhoven University of Technology, Den Dolech 2, 5612 Az Eindhoven, the Netherlands; +31 40-247 5904; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Brouwers Jos - Eindhoven University of Technology PhD, Professor, Department of the Built Environment, Eindhoven University of Technology, Den Dolech 2, 5612 Az Eindhoven, the Netherlands; +31 40-247 2930; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 98-106

This study addresses the development of ultra-lightweight concrete. A moderate strength and an excellent thermal conductivity of the lightweight concrete are set as the design targets. The designed lightweight aggregates concrete is targeted to be used in monolithic concrete façade structure, performing as both load bearing element and thermal insulator. The developed lightweight concrete shows excellent thermal properties, with a low thermal conductivity of about 0.12 W/(m·K); and moderate mechanical properties, with 28-day compressive strengths of about 10-12 N/mm
2. This combination of values exceeds, to the researchers’ knowledge, the performance of all other lightweight building materials. Furthermore, the developed lightweight concrete possesses excellent durability properties.

DOI: 10.22227/1997-0935.2014.4.98-106

References
  1. Chandra Berntsson L. Lightweight Aggregate Concrete Science, Technology and Applications. Standard publishers distributors. Delhi, India, 2003.
  2. Yu Q.L. Design of Environmentally Friendly Calcium Sulfate-based Building Materials. Towards and Improved Indoor Air Quality. PhD thesis. Eindhoven University of Technology, the Netherlands 2012.
  3. Brouwers H.J.H., Radix H.J. Self-compacting Concrete: Theoretical and Experimental Study. Cement Concrete Research. 2005, no. 35, pp. 2116—2136.
  4. Hunger M. An Integral Design Concept for Ecological Self-Compacting Concrete. PhD thesis. Eindhoven University of Technology, the Netherlands, 2010.
  5. H?sken G., Brouwers H.J.H. A New Mix Design Concept for Earth-moist Concrete: A Theoretical and Experimental Study. Cement and Concrete Research, 2008, no. 38, pp. 1246—1259.
  6. H?sken G. A Multifunctional Design Approach for Sustainable Concrete with Application to Concrete Mass Products. PhD thesis. Eindhoven University of Technology, the Netherlands, 2010.
  7. Zareef M.A.M.E. Conceptual and Structural Design of Buildings made of Lightweight and Infra-Lightweight Concrete, 2010.
  8. ACI Committee 213. Guide for Structural Lightweight-Aggregate Concrete. 2003.
  9. Loudon A.G. The Thermal Properties of Lightweight Concretes. International Journal of Cement Composites and Lightweight Concrete. 1979, no. 1, pp. 71—85.
  10. Neville A.M. Properties of Concrete. 4th ed. 1995.
  11. Alduaij J., Alshaleh K., Naseer Haque M., Ellaithy K. Lightweight Concrete in Hot Coastal Areas. Cement and Concrete Composites. 1999, no. 21, pp. 453—458.
  12. Top?u I.B., Uygunoglu T. Effect of Aggregate Type on Properties of Hardened Selfconsolidating Lightweight Concrete (SCLC). Construction and Building Materials, 2010, no. 24, pp. 1286—1295.
  13. Schauerte M., Trettin R. Neue Schaumbetone mit gesteigerten mechanischen ind physikalischen Eigenschaften. Bauhaus-Universitat Weimar. Weimar, Germany, 2012, pp. 2-0066—2-0072.
  14. Kan A., Demirboga R. A Novel Material for Lightweight Concrete Production, Cement and Concrete Composites. 2009, no. 31, pp. 489—495.
  15. Kralj D. Experimental Study of Recycling Lightweight Concrete with Aggregates Containing Expanded Glass. Process Safety and Environmental Protection. 2009, no. 87, pp. 267—273.
  16. Liu X., Chia K.S., Zhang M.H. Development of Lightweight Concrete with High Resistance to Water and Chlorideion Penetration. Cement and Concrete Composites. 2010, no. 32, pp. 757—766.
  17. Yu Q.L., Spiesz P., Brouwers H.J.H. Design of Ultra-lightweight Concrete: Towards Monolithic Concrete Structures. 1st International Conference on the Chemistry of Construction Materials, Berlin, 7-9 October 2013, Monograph. 2013, vol. 46, pp. 31—34. Available at: http://josbrouwers.bwk.tue.nl/publications/Conference108.pdf.

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Glass-ceramic cellular material based on dispersed glass

Vestnik MGSU 7/2014
  • Vaysman Yakov Iosifovich - Perm National Research Polytechnic University (PNRPU) Doctor of Medical Sciences, Professor, scientific supervisor, Department of Environmental Protection, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy pr., Perm, 614990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ketov Petr Aleksandrovich - State National Research Polytechnical University of Perm (PSTU SNRPUP) postgraduate student, Department of Environmental Protection, State National Research Polytechnical University of Perm (PSTU SNRPUP), 29 Komsomol’skiy prospect, Perm, 614990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Potapov Aleksandr Dmitrievich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Engineering Geology and Geoscology, Moscow State University of Civil Engineering (MGSU), 26, Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 85-92

High thermal resistance of heat insulating materials in real conditions is due to the presence of isolated gas cavities, usually air, in the material content. In order to create a cellular glass-ceramic material based on dispersed glass with high consumer characteristics and acceptable cost it’s necessary to change sulfate powder technology of making foam glass and replace the use of specialty glass to waste glass at low temperatures of glass forming. The use of waste glass as a raw material solves an important environmental problem. High level of vapor permeability of foam glass would extend the use of this material in fencing constructions. Heat treating of dispersed glass composite material in the matrix of hydrate sodium polysilicates leads to the formation of porous structured glass-ceramic with high heat insulating parameters. Engineering proposal allows using waste glass as a raw material instead of specialty glass.

DOI: 10.22227/1997-0935.2014.7.85-92

References
  1. Demidovich B.K. Penosteklo [Foam Glass]. Minsk, Nauka i Tekhnika Publ., 1975, 248 p.
  2. Schlil F. P?nov? sklo : v?roba a pou?it?. Praha, SNTL, 1962, 269 p.
  3. Bayars E.A., Zhu H., Meyer C. Use of Waste Glass for Construction Products: Legislative and Technical Issues. Recycling and Reuse of Waste Materials: Proceedings of the International Symposium. Dundee, Scotland, 2003, pp. 827—838.
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  15. Valuyskikh V.P., Strizhova S.V., Lisenkov K.V. Temperaturnye rezhimy raboty kamennykh i trekhsloynykh ograzhdayushchikh sten [Service Temperatures of Stone and Three-layered Fence Walls]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 11, pp. 155—160.

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Increasing energy efficiency of wall materials with the help of cenospheres

Vestnik MGSU 7/2014
  • Zhukov Aleksey Dmitrievich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Composite Materials Technology and Applied Chemistry, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bessonov Igor' Vyacheslavovich - Scientific and Research Institute of Construction Phisics of Russian Academy of Architecture and Construction Sciences (NIISF RAASN) Candidate of Technical Sciences, leading research worker, Scientific and Research Institute of Construction Phisics of Russian Academy of Architecture and Construction Sciences (NIISF RAASN), 21 Lokomotivnyy proezd, Moscow, 127238, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sapelin Andrey Nikolayevich - Scientific and Research Institute of Construction Phisics of Russian Academy of Architecture and Construction Sciences (NIISF RAASN) postgraduate student, Scientific and Research Institute of Construction Phisics of Russian Academy of Architecture and Construction Sciences (NIISF RAASN), 21 Lokomotivnyy proezd, Moscow, 127238, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Naumova Natal'ya Vladimirovna - Xella-Aeroblock-Centre head, Technical Support Department, Xella-Aeroblock-Centre, 93/2 Rabochaya str., Moscow, 109544, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 93-100

Hollow filling by brick mortar may take place in engineering structures with hollow tiles, which leads to thermal properties worsening of a construction. One of solutions to the problem of increasing energy efficiency of enveloping structures is the development of heat insulation material based on cenospheres with increased strength and decreased thermal conductivity in case of operational watering. Homogeneous construction systems based on cellular concrete and porous ceramics meet the structural requirements and also provide required thermal performance. In order to improve operational characteristics of enclosing structures it is possible to apply ceramic materials with effective high porous filler. Manufacturing technology of materials based on high porous filler and clay does not require significant capital expenditures to upgrade existing facilities and it’s similar to technology of ceramic wall materials.

DOI: 10.22227/1997-0935.2014.7.93-100

References
  1. Gagarin V.G. Makroekonomicheskie aspekty obosnovaniya energosberegayushchikh meropriyatiy pri povyshenii teplozashchity ograzhdayushchikh konstruktsiy zdaniy [Macro-economic Aspects of Energy Saving Measures’ Substantiation by Increasing Thermal Protection of Enclosing Structures of Buildings]. Stroitel'nye materialy [Construction Materials]. 2010, no. 3, pp. 8—16.
  2. Shmelev S.E. Puti vybora optimal'nogo nabora energosberegayushchikh meropriyatiy [Ways of Selecting the Optimal Set of Energy-saving Measures]. Stroitel'nye materialy [Construction Materials]. 2013, no. 3, pp. 7—9.
  3. Ashmarin G.D., Salakhov A.M., Boltakova N.V., Morozov V.P., Gerashchenko V.N., Salakhova R.A. Vliyanie porovogo prostranstva na prochnostnye kharakteristiki keramiki [The Influence of Pore Space on the Strength Behaviour of Ceramics]. Steklo i keramika [Glass and Ceramics]. 2012, no. 8, pp. 24—30.
  4. De Lange R.S.A., Hekkink J.H.H., Keizer K., Burggraaf A.J. Microporous sol-gel Modified Membranes for Hydrogen Separation. In Proceedings of ICIM-2, 1—4 July, 1991. Montpellier, France. Key Engineering Materials. Trans. Tech. Publishers, Zurich, Switzerland, 1992, vol. 61—62, pp. 77—82.
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  7. Rumyantsev B.M., Zhukov A.D., Smirnova T.V. Teploprovodnost' vysokoporistykh materialov [Heat Conductivity of Highly Porous Materials]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 3, pp. 108—114.
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  12. Oreshkin D.V. Vysokokachestvennye tsementnye tamponazhnye materialy s polymi steklyannymi mikrosferami [High Quality Oil-well Cement Materials with Hollow Glass Microspheres]. Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more [Construction of Oil and Gas Wells on Land and Sea]. 2003, no. 7, pp. 20—31.
  13. Sapelin A.N. Sorbtsionnye svoystva stenovykh materialov s primeneniem mikrosfer [Sorptive Properties of the Wall Materials Using Microspheres]. Academia. Arkhitektura I stroitel'stvo [Academia. Architecture and Construction]. 2013, no. 3, pp. 101—104.
  14. Sapelin A.N., Bessonov I.V. Koeffitsienty struktury kak kriteriy otsenki teplotekhnicheskogo kachestva stroitel'nykh materialov [Pattern Coefficients as a Criterion for Assessing Thermal Performance of Construction Materials]. Stroitel'nye materialy [Construction Materials]. 2012, no. 6, pp. 26—28.
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Nontraditional clay raw materials as a component of inorganic dispersed phases

Vestnik MGSU 9/2014
  • Volodchenko Aleksandr Anatol'evich - Belgorod State Technological University named after V.G. Shoukhov (BSTU named after V.G.Shoukhov) Candidate of Technical Sciences, junior researcher, Department of Construction Materials Science, Products and Constructuions, Belgorod State Technological University named after V.G. Shoukhov (BSTU named after V.G.Shoukhov), 46 Kostyukova str., Belgorod, 308012, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zagorodnyuk Liliya Khasanovna - Belgorod State Technological University named after V.G. Shoukhov (BSTU named after V.G.Shoukhov) Candidate of Technical Sciences, Associate Professor, Department of Construction Materials Science, Products and Constructuions, Belgorod State Technological University named after V.G. Shoukhov (BSTU named after V.G.Shoukhov), 46 Kostyukova str., Belgorod, 308012, Russian Federation; +7 (4722) 55-82-01; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Prasolova Ekaterina Olegovna - Belgorod State Technological University named after V.G. Shoukhov (BSTU named after V.G.Shoukhov) postgraduate student, Department of Construction Materials Science, Products and Constructuions, Belgorod State Technological University named after V.G. Shoukhov (BSTU named after V.G.Shoukhov), 46 Kostyukova str., Belgorod, 308012, Russian Federation; +7 (4722) 55-82-01; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Chin Sovann - Belgorod State Technological University named after V.G. Shoukhov (BSTU named after V.G.Shoukhov) postgraduate student, Department of Construction Materials Science, Products and Constructuions, Belgorod State Technological University named after V.G. Shoukhov (BSTU named after V.G.Shoukhov), 46 Kostyukova str., Belgorod, 308012, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 67-75

The research of raw base for construction materials allows theoretically justifying and experimentally confirming the ability to control the processes of structure formation in order to obtain materials with the desired properties. Clay matter has a complicated chemical and mineral composition. In recent decades the structures and properties of clay minerals have been investigated in detail with the help of modern research methods. Out of the whole quantity of clay deposits the production sector uses only the small part, which satisfies the standard technical documents in force. In case of using non-traditional clay rocks in the production of wall materials it is possible to cross over from traditional raw materials to another - composite binder, obtained on the basis of natural nanodispersed raw material, which helps to speed up neoformation synthesis, change their morphology, optimize microstructure of cementing compounds and consequently improve physical and mathematical properties of the products. Using non-traditional for construction industry clay rocks in the production of silicate materials increases the strength of raw-brick 4...11 times, which facilitates the production of high cavitated product and significantly expands the range of products.

DOI: 10.22227/1997-0935.2014.9.67-75

References
  1. Lesovik V.S. Povyshenie effektivnosti proizvodstva stroitel'nykh materialov s uchetom genezisa gornykh porod [Efficiency Increase of the Production of Building Materials with Regard to the Genesis of Rocks]. Moscow, ASV Publ., 2006, 526 p.
  2. Lesovik V.S. Geonika. Predmet i zadachi : monografiya [Geonics. Subject and Objectives. Monograph]. Belgorod, BGTU Publ., 2012, 219 p.
  3. Volodchenko A.N. Vliyanie peschano-glinistykh porod na optimizatsiyu mikrostruktury avtoklavnykh silikatnykh materialov [Influence of Sandy and Clay Rocks on Microstructure Optimization of Autoclave Silicate Materials]. Sbornik nauchnykh trudov SWorld. Sovremennye problemy i puti ikh resheniya v nauke, transporte, proizvodstve, obrazovanii 2012 : materialy mezhdunarodnoy nauchno-prakticheskoy konferentsii [Collection of Scientific Works SWorld. Contemporary Problems and Ways of their Solution in Science, Transport, Production, Education 2012 : Materials of the International Science and Practice Conference]. Odessa, KUPRIENKO Publ., 2012, no. 4, vol. 47, pp. 32—35.
  4. Volodchenko A.N., Zhukov R.V., Lesovik V.S., Doroganov E.A. Optimizatsiya svoystv silikatnykh materialov na osnove izvestkovo-peschano-glinistogo vyazhushchego [Optimization of the Properties of Silicate Materials Based on Lime-sand-clay Binder]. Stroi-tel'nye materialy [Construction Materials]. 2007, no. 4, pp. 66—69.
  5. Volodchenko A.N., Lukutsova N.P., Prasolova E.O., Lesovik V.S., Kuprina A.A. Sand-Clay Raw Materials for Silicate Materials Production. Advances in Environmental Biology. June 2014, vol. 8, no. 10, pp. 949—955.
  6. Volodchenko A.N., Lesovik V.S. Reologicheskie svoystva gazobetonnoy smesi na osnove netraditsionnogo syr'ya [Rheological Properties of Aerated Concrete Mixtures Based on Non-traditional Raw Materials]. Vestnik BGTU im. V.G. Shukhova [Proceedings of Belgorod State Technological University Named after V. G. Shukhov]. 2012, no. 3, pp. 45—48.
  7. Volodchenko A.N. Avtoklavnye silikatnye materialy na osnove otkhodov gornodobyvayushchey promyshlennosti [Autoclave Silicate Materials Based on Mining Waste]. Sbornik nauchnykh trudov SWorld [Collection of Scientific Works of SWorld]. Sbornik nauchnykh trudov SWorld. Sovremennye problemy i puti ikh resheniya v nauke, transporte, proizvodstve, obrazovanii 2012 : materialy mezhdunarodnoy nauchno-prakticheskoy konferentsii [Collection of Scientific Works SWorld. Contemporary Problems and Ways of their Solution in Science, Transport, Production, Education 2012 : Materials of the International Science and Practice Conference]. Odessa, KUPRIENKO Publ., 2012, no. 4, vol. 47, pp. 29—32.
  8. Volodchenko A.N., Lesovik V.S., Alfimov S.I., Zhukov R.V. Use of Mining Industry Wastes for Silicate Materials Production. The 3rd International Conference on Chemical Investigation & Utilization of Natural Resources, June 25—28. Ulaanbaatar, Mongolia, 2008, pp. 241—245.
  9. Volodchenko A.N. Netraditsionnoe syr'e dlya avtoklavnykh silikatnykh materialov [Nontraditional Raw Materials for Autoclave Silicate Materials]. Tekhnicheskie nauki — ot teorii k praktike [Engineering Sciences — from Theory to Practice]. 2013, no. 20, pp. 82—88.
  10. Lesovik V.S., Volodchenko A.A. Vliyanie sostava syr'ya na svoystva bezavto-klavnykh silikatnykh materialov [Effect of Raw Material Composition on the Properties of Non-autoclave Silicate Materials]. Vestnik BGTU im. V.G. Shukhova [Proceedings of Belgorod State Technological University Named after V. G. Shukhov]. 2013, no. 1, pp. 10—15.
  11. Alfimova N.I., Shapovalov N.N. Materialy avtoklavnogo tverdeniya s ispol'zovaniem tekhnogennogo alyumosilikatnogo syr'ya [Materials of Autoclave Curing with Technogenic Aluminosilicate Raw Materials]. Fundamental'nye issledovaniya [Fundamental Research]. 2013, no. 6, Part 3, pp. 525—529.
  12. Alfimova N.I., Shapovalov N.N., Abrosimova O.S. Ekspluatatsionnye kharakteristiki silikatnogo kirpicha, izgotovlennogo s ispol'zovaniem tekhnogennogo alyumosilikatnogo syr'ya [Performance Specifications of silicate brick, manufactured using technogenic aluminosilicate raw materials]. Vestnik BGTU im. V.G. Shukhova [Proceedings of Belgorod State Technological University Named after V. G. Shukhov]. 2013, no. 3, pp. 11—14.
  13. Fomina E.V., Strokova V.V., Kozhukhova M.I. Effect of Previously Slacked Lime on Properties of Autoclave Composite Binders. World Applied Sciences Journal. 2013, vol. 24, no. 11, pp. 1519—1524. DOI: http://dx.doi.org/10.5829/idosi.wasj.2013.24.11.7018.
  14. Lesovik V.S., Aksenova L.L., Savich M.L., Ginsburg A.V. Functional Characteristics and Energy Intensity of Concretes. World Applied Sciences Journal. 2013, vol. 25, no. 1, pp. 92—96. DOI: http://dx.doi.org/10.5829/idosi.wasj.2013.25.01.7028.
  15. Lesovik V.S., Ageeva M.S., Shakarna M.I.H. Efficient Binding Using Composite Tuffs of the Middle East. World Applied Sciences Journal. 2013, vol. 24, no. 10, pp. 1286—1290. DOI: http://dx.doi.org/10.5829/idosi.wasj.2013.24.10.7002.

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Determination of the heating temperature of potholes surface on road pavement in the process of repairs using hot asphalt concrete mixes

Vestnik MGSU 11/2014
  • Giyasov Botir Iminzhonovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, chair, Department of Architectural and Construction Design, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (495) 287-49-14; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zubkov Anatoliy Fedorovich - Tambov State Technical University (TSTU) Doctor of Technical Sciences, Associate Professor, Department of Urban Development and Motor Roads, Tambov State Technical University (TSTU), 112 E Michurinskaya str., 392032, Tambov, Russian Federation; +7 (4752) 63-09-20, 63-03-72; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Andrianov Konstantin Anatol’evich - Tambov State Technical University (TSTU) Candidate of Technical Sciences, Associate Professor, Department of Urban Development and Motor Roads, Tambov State Technical University (TSTU), 112 E Michurinskaya str., 392032, Tambov, Russian Federation; +7 (4752) 63-09-20, 63-03-72; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 118-127

In the process of roads construction the necessary transport and operational characteristics should be achieved, which depend on the quality of the applied, material and technologies. Under the loads of transport means and the influence of weather conditions on the road pavement deformations and destructions occur, which lead to worsening of transport and operational characteristics, decrease of operational life of the road and they are often the reason of road accidents. According to the data of the Strategic Research Center of "Rosgosstrah" more than 20 % of road accidents in Russia occur due to bad quality of road pavement. One of the main directions in traffic security control and prolongation of operational life for road pavement of non-rigid type is road works, as a result of which defects of pavement are eliminated and in case of timely repairs of high quality the operational life of the road increases for several years. The most widely used material for non-rigid pavement repairs is hot road concrete mixes and in case of adherence to specifications they provide high quality of works. The authors investigate the problems of hot asphalt concrete mixes for repairs of road surfaces of non-rigid type. The results of the study hot asphalt concrete mix’s temperature regimes are offered in case of repair works considering the temperature delivered to the work site and the ambient temperature depending on the type of mix and class of bitumen.

DOI: 10.22227/1997-0935.2014.11.118-127

References
  1. B?chler S., Wistuba M.P. Modellierung des K?lteverhaltens von Asphalten. Strasse und Autobahn. 2012, no. 4, pp. 233—240.
  2. Wellner F., Werkmeister S., Ascher D. Auswirkung der Alterung und des Schichtenverbundes auf den Beanspruchungs zustand von Asphaltbefestigungen. Strasse und Autobahn. 2012, no. 7, pp. 430—437.
  3. Evdorides H.T., Snaitin M.S. A Knowledge-based Analyses Process for Road Pavement Condition Assessment. Proceedings of the ICE — Transport. 1996, vol. 117, Aug., pp. 202—210. DOI: http://dx.doi.org/10.1680/itran.1996.28631.
  4. Snyder R.W. Asphalt Paving: Smoothing Nerves. Roads & Bridges. 2014, no. 3. Available at: http://www.roadsbridges.com/asphalt-paving-smoothing-nerves. Date of access: 14.10.2014.
  5. Fort L. No 5 Road: Massive Impact. Roads & Bridges. 2014, no. 5. Available at: http://www.roadsbridges.com/no-5-road-massive-impact. Date of access: 14.10.2014.
  6. Hofko B., Blab R. Einfluss der Verdichtungsrichtung auf das mechanische Verhalten von Asphaltprobek?rpern aus walzsegmentverdichteten Platten. Stra?e und Autobahn. 2013, vol. 64, no. 7, pp. 522—530.
  7. Vasil’ev A.P., Bystrov N.V., Nadezhko A.A., Fedotov G.A., Pospelov P.I., editors. Spravochnaya entsiklopediya dorozhnika. T. 2. Remont i soderzhanie avtomobil’nykh dorog [Reference Book of Road Worker. Vol. 2. Repairs and Maintenance of Roads]. Moscow, Informavtodor Publ., 2004, 1129 p. (In Russian)
  8. Sostoyanie avtomobil’nykh dorog v Rossii [Condition of Roads in Russia]. Website Klintsy.ru. 09.04.2011. Available at: http://www.klintsy.ru/auto/sostojanie-avtomobilnykhdorog-v-rossii_2014.html. Date of access: 19.09.2014. (In Russian)
  9. Kupriyanov R.V., Evseev E.Yu. Analiz tekhnologiy dlya remonta vyboin na pokrytiyakh nezhestkogo tipa [Repairs Technologies Analysis of Potholes on Pavements of Non-rigid Type]. Dorogi Rossii XXI veka [Roads of Russia in the 21st Century]. 2010, no. 4, pp. 84—87. (In Russian)
  10. Apestin V.K. O raskhozhdenii proektnykh i normativnykh mezhremontnykh srokov sluzhby dorozhnykh odezhd [On the Disagreement of Design and Normative Intermaintenance Period of Road Pavements]. Nauka i tekhnika v dorozhnoy otrasli [Science and Technology in Road Field]. 2011, no. 1, pp. 18—20.
  11. Aleksikov S.V. Abdulzhalilov O.Yu., Osobennosti transportirovki goryachikh asfal’tobetonnykh smesey pri remonte dorozhnykh pokrytiy v gorodskikh usloviyakh [Features of Transport Hot Asphalt Concrete Mixes in the Process of Road Pavement Repairs in City Conditions]. Vestnik Volgogradskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. Seriya: Stroitel’stvo i arkhitektura [Proceedings of Volgograd State University of Architecture and Civil Engineering. Series: Construction and Architecture]. 2009, no. 16, pp. 65—71. (In Russian)
  12. Abdulzhalilov O.Yu., Aleksikov S.V., Karpushko M.O. Ukladka goryachikh asfal’tobetonnykh smesey pri remonte pokrytiy gorodskikh dorog [Laying of Hot Asphalt Concrete Mixes in the Process of Repairs of City Roads’ Pavement]. Vestnik Volgogradskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. Seriya: Stroitel’stvo i arkhitektura [Proceedings of Volgograd State University of Architecture and Civil Engineering. Series: Construction and Architecture]. 2010, no. 17, pp. 35—42. (In Russian)
  13. Abdulzhalilov O.Yu., Aleksikov S.V., Karpushko M.O. Issledovanie zavisimosti proizvoditel’nosti ABZ ot proizvodstvennykh usloviy [Investigation of the Dependence of Asphalt Concrete Mixing Plant Productivity from Production Conditions]. Uchenye Volgograda — razvitiyu goroda : sbornik statey [School of Volgograd for the Development of the City: Collection of Articles]. Volgograd, MUP «Gorodskie vesti» Publ., 2009, pp. 102—104. (In Russian)
  14. Abdulzhalilov O.Yu., Aleksikov S.V., Karpushko M.O. Transportnoe obespechenie stroitel’stva dorozhnykh pokrytiy dorog [Transport Provision for Road Pavement Construction]. Progress transportnykh sredstv i sistem, 2009 : materialy mezhdunarodnoy nauchnoprakticheskoy konferentsii, Volgograd. 13—15 oktyabrya 2009 goda [Progress of Transport Facilities and Systems, 2009 : Materials of International Scientific and Practical Conference, Volgograd. October 13—15, 2009]. Volgograd, Volgograd State Technical University Publ., 2009, part. 2, pp. 95—96. (In Russian)
  15. Abdulzhalilov O.Yu., Aleksikov S.V. Optimizatsiya marshruta perevozki goryachikh asfal’tobetonnykh smesey v gorodskikh usloviyakh [Optimization of Transport Route of Hot Asphalt Concrete Mixes in City Conditions]. Progressivnye tekhnologii v transportnykh sistemakh : sbornik materialov IX rossiyskoy nauchno-prakticheskoy konferentsii (26—27 noyabrya 2009 g.) [Progressive Technologies in Transport Systems : Collection of Works of the 9th Russian Science and Practice Conference (October 26—27, 2009)]. Orenburg, IPK GOU OGU Publ., 2009, pp. 21—23. (In Russian)
  16. Abdulzhalilov O.Yu., Aleksikov S.V. Operativnoe upravlenie resursnym obespecheniem stroitel’stva asfal’tobetonnykh pokrytiy [Operational Management of Resources Provision for Constructing Asphalt Concrete Pavement]. Maloetazhnoe stroitel’stvo v ramkakh natsional’nogo proekta «Dostupnoe i komfortnoe zhil’e grazhdanam Rossii»: materialy mezhdunarodnoy nauchno-prakticheskoy konferentsii [Low-Rise Construction in Frames of National Project "Affordable and Comfortable Housing for Russian Citizens" : Materials of International Svience and Practice Conference]. December 15—16, 2009, Volgograd, VolgGASU Publ., 2009, pp. 439—441. (In Russian)
  17. Zubkov A.F., Matveev V.N., Evseev E.Yu. Razrabotka teplofizicheskoy modeli pri proizvodstve remontnykh rabot pokrytiy nezhestkogo tipa [Development of Thermophysical Model in Case of Repair Works of Non-rigid Type Pavements] // Vestnik tsentral'nogo regional'nogo otdeleniya Rossiyskoy akademii arkhitektury i stroitel'nykh nauk [Proceedings of Central Regional Department of the Russian Academy of Architecture and Construction Sciences]. Tambov — Voronezh, 2012, no. 11, pp. 303—309. (In Russian)
  18. Zubkov A.F., Odnol’ko V.G. Tekhnologiya stroitel’stva asfal’tobetonnykh pokrytiy avtomobil’nykh dorog [Construction Technology of Asphalt Concrete Road Pavements]. Moscow, Mashinostroenie Publ., 2009, 223 p. (In Russian).
  19. Zubkov A.F. Tekhnologiya ustroystva pokrytiy iz goryachikh asfal’tobetonnykh smesey s uchetom temperaturnykh rezhimov [Technology of Pavement Construction of Hot Asphalt Concrete Mixes with Account for Temperature Modes]. Tambov, Pershina R.V. Publ., 2006, 152 p. (In Russian)
  20. Zubkov A.F., Khrebtova O.A., Matveev V.N., Evseev E.Yu. Raschet temperatury goryachego asfal’tobetona v ogranichennom ob”eme vyemki dorozhnogo pokrytiya. Svidetel’stvo o gosudarstvennoy registratsii programmy dlya EVM ¹ 2013661215 [Calculation of Hot Asphalt Concrete Temperature in Limited Volume of Road Pavement Pothole. State Registration Certificate of a Program for a Computer no. 2013661215]. 02.12.2013. (In Russian)

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Using rice straw to manufacture ceramic bricks

Vestnik MGSU 11/2014
  • Gorbunov German Ivanovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Technology of Finishing and Insulation Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Rasulov Olimdzhon Rakhmonberdievich - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Technology of Finishing and Insulation Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 128-136

In the article, the co-authors offer their advanced and efficient methodologies for the recycling of the rice straw, as well as the novel approaches to the ceramic brick quality improvement through the application of the rice straw as the combustible additive and through the formation of amorphous silica in the course of the rice straw combustion. The co-authors provide characteristics of the raw materials, production techniques used to manufacture ceramic bricks, and their basic properties in the article. The co-authors describe the simulated process of formation of amorphous silica. The process in question has two independent steps (or options): 1) rice straw combustion and ash formation outside the oven (in the oxidizing medium), and further application of ash as the additive in the process of burning clay mixtures; 2) adding pre-treated rice straw as the combustible additive into the clay mixture, and its further burning in compliance with the pre-set temperature mode. The findings have proven that the most rational pre-requisite of the rice straw application in the manufacturing of ceramic bricks consists in feeding milled straw into the clay mixture to be followed by molding, drying and burning. Brick samples are highly porous, and they also demonstrate sufficient compressive strength. The co-authors have also identified optimal values of rice straw and ash content in the mixtures under research.

DOI: 10.22227/1997-0935.2014.11.128-136

References
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  6. Vurasko A.V., Driker B.N., Galimova A.R., Mertin E.V., Chistyakova K.N. Patent RF ¹ 2418122, MPK D21C3/26, D21C3/02, D21C3/04, D21C5/00. Sposob polucheniya tsellyulozy iz solomy risa. Zayavl. ¹ 2010118642/12, 07.05.2010; opubl. 10.05.2011. Byul. ¹ 13 [Russian Patent no. 2418122. MPK D21C3/26, D21C3/02, D21C3/04, D21C5/00. Method of Obtaining Cellulose of Rice Straw. No. 2010118642/12, Appl. 07.05.2010; Publ. 10.05.2011. Bull. no. 13]. Patent holder Ural State Forest Engineering University; 5 p. (In Russian)
  7. Dobrzhanskiy V.G., Zemnukhova L.A., Sergienko V.I. Patent RF ¹ 2106304. Sposob polucheniya vodorastvorimykh silikatov iz zoly risovoy shelukhi. ¹ 96118801; zayavl. 23.09.1996; opubl. 10.03.1998 [Russian Patent no. 2106304. Method of Obtaining Water-Soluble Silicates of Rice Straw Ashes. No. 96118801; appl. 23.09.1996; publ. 10.03.1998]. Patent holder Chemistry Institute of Far Eastern Branch of RAS. Available at: http://www.freepatent.ru/patents/2106304. Date of access: 20.05.2014. (In Russian)
  8. Pazukhina G.A., Sh.R. Monsef. Patent RF ¹ 2423570. MPK D21C1/06, D21C3/02, D21C5/00. Sposob polucheniya tsellyulozy iz solomy. ¹ 2010129321/12 ; zayavl. 16.07.2010; opubl. 10.07.2011, Byul. ¹ 19 [Russian Patent no. 2423570. MPK D21C1/06, D21C3/02, D21C5/00. Method of Obtaining Cellulose of the Straw. No. 2010129321/12 ; appl. 16.07.2010; Publ. 10.07.2011; Bulletin no. 19]. 6 p. Available at: http://www.freepatent.ru/patents/2423570. Date of access: 20.05.2014. (In Russian)
  9. Vinogradov V.V., Vinogradova E.P. Patent RF ¹ 2191159. MPK C01B33/00. Sposob polucheniya ul'tradispersnogo amorfnogo ili nanokristallicheskogo dioksida kremniya. ¹: 2001113925/12; zayavl. 25.05.2001; opubl. 20.10.2002 [Russian Patent no. ¹ 2191159. MPK C01B33/00. Method of Obtaining Ultradisperse Amorphic or Nanocrystal Silicon Dioxide. No. 2001113925/12; appl. 25.05.2001; publ. 20.10.2002]. Patent Holder N.A. Khachaturov. Available at: http://www.freepatent.ru/patents/2191159. Date of access: 20.05. 2014. (In Russian)
  10. Vinogradov V.V., Vinogradova E.P. Patent: RF ¹ 2191158. MPK. Ñ01Â33/12. Sposob podgotovki risovoy shelukhi dlya polucheniya vysokochistogo dioksida kremniya. ¹: 2001113525/12; zayavl. 22.05.2001; opubl. 20.10.2002 [Russian Patent no. 2191158. MPK. Ñ01Â33/12. Method of Preparing Rice Hulls for Obtaining High-purity Silicon Dioxide. No. 2001113525/12; appl. 22.05.2001; publ. 20.10.2002]. Patent holder N.A. Khachaturov. Available at: http://www.findpatent.ru/patent/219/2191158.html/. Date of access: 20.05.2014. (In Russian)
  11. Zemnukhova L.A., Fedorishcheva G.A. Patent RF ¹ 2394764. MPK Ñ01Â33/12; Â82Â1/00. Sposob polucheniya dioksida kremnya. ¹ 2009114380/15, zayavl. 15.04.2009; opubl. 20.07.2010. Byul. ¹ 20 [Russian Patent no. 2394764. MPK Ñ01Â33/12; Â82Â1/00. Method of Obtaining Silicon Dioxide. No. 2009114380/15, appl. 15.04.2009; publ. 20.07.2010. Billetin no. 20]. 8 p. Patent holder Chemistry Institute of Far Eastern Branch of RAS. Available at: http://www.freepatent.ru/patents/2394764. Date of access: 20.05.2014. (In Russian)
  12. Zemnukhova L.A., Fedorishcheva G.A., Egorov A.G., Sergienko V.I. Issledovanie usloviy polucheniya, sostava primesey i svoystv amorfnogo dioksida kremniya iz otkhodov proizvodstva risa [Investigation of the Obtaining Conditions, Admixture Composition and Properties of the Amorphous Silicon Dioxide of Rice Production Waste]. Zhurnal prikladnoy khimii [Applied Chemistry Journal]. 2005, vol. 78, no. 2, pp. 324—328. (In Russian)
  13. Skryabin A.A., Sidorov A.M., Puzyrev E.M, Shchurenko V.P. Patent RF 2291105. MPK Ñ01Â33/12; F23Ñ9/00. Sposob polucheniya dioksida kremniya i teplovoy energii iz kremniysoderzhashchikh rastitel'nykh otkhodov i ustanovka dlya szhiganiya melkodispersnykh materialov. Zayavl. 06.09.2005; opubl. 10.01.2007. Byul. ¹ 1 [Russian Patent no. 2291105. MPK Ñ01Â33/12; F23Ñ9/00. Method of Obtaining Silicon Dioxide and Heat Energy of Siliceous Vegetable Raw Materials and Installation for Burning Fine Materials. Appl. 06.09.2005; publ. 10.01.2007. Bulletin no. 1]. Patent holder Research and Design Canter “Biyskenergomash”, 10 p. Available at: http://www.freepatent.ru/patents/2291105. Date of access: 20.05.2014. (In Russian)
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Optimization of cement composites with the use of fillers from the Chechen Republic fields

Vestnik MGSU 12/2014
  • Balatkhanova Elita Mahmudovna - Ogarev Mordovia State University (MGU im. Ogareva) doctoral candidate, Department of Construction Materials and Technologies, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (8342) 47-40-19; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Erofeev Vladimir Trofimovich - Ogarev Mordovia State University (MGU im. Ogareva) Doctor of Technical Sciences, Professor, Chair, Department of Construction Materials and Technologies, dean, Department of Architecture and Construction, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (8342) 47-40-19; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bazhenov Yuriy Mikhailovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Binders and Concrete Technology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (495) 287-49-14, ext. 31-02, 31-03, 31-01; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mitina Elena Aleksandrovna - Ogarev Mordovia State University (MGU im. Ogareva) Candidate of Technical Sciences, Associate Professor, Department of Highways and Special Engineering Structures, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (8342) 47-40-19; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Rodin Alexander Ivanovich - Ogarev Mordovia State University (MGU im. Ogareva) Candidate of Technical Sciences, Senior Lecturer, Department of Economy and Management in Construction, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (8342) 47-40-19; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Eremin Aleksey Vladimirovich - Moscow State University of Civil Engineering (MGSU) head, laboratory of Physical and Chemical Analysis, Scientific and Research Institute of Construction Materials and Technologies, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Adamtsevich Aleksey Olegovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, head, Principal Regional Center of Collective Use of Scientific Institute of Construction Materials and Technologies, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (495) 656-14-66; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 121-130

The fillers together with binders take part in microstructure formation of matrix basis and contact zones of a composite. The advantage of cement matrix structure with a filler is that inner defects are localized in it - microcracks, macropores and capillary pores, as well as that their quantity, their sizes and stress concentration decrease. Structure formation of filled cement composites is based on the processes taking place in the contact of liquid and stiff phases, which means, it depends on the quantitative relation of the cement, fillers and water, and also dispersivity and physical and chemical activity of the fillers. In the article the authors offer research results of the processes of hydration and physical-mechanical properties of cement composites with fillers from the fields of the Chechen Republic. Research results of heat cement systems are presented, modified by fine fillers. Optimal composition of cement composites filled with powders of quartz, sandstone, river and a mountain limestone of different particle size composition, characterized by a high strength, are obtained.

DOI: 10.22227/1997-0935.2014.12.121-130

References
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  18. Nguyen Van Tuan, Guang Ye, Klaas van Breugel, Oguzhan Copuroglu. Hydration and Microstructure of Ultra High Performance Concrete Incorporating Rice Husk Ash. Cement and Concrete Research. 2011, vol. 41, no. 11, pp. 1104—1111.
  19. Pashkevich S., Pustovgar A., Adamtsevich A., Eremin A. Pore Structure Formation of Modified Cement Systems, Hardening over the Temperature Range from +22°C to –10°C. Applied Mechanics and Materials. 2014, vols. 584—585, pp. 1659—1664.
  20. Sabine M. Leisinger, Barbara Lothenbach, Gwenn Le Saout, C. Annette Johnson. Thermodynamic Modeling of Solid Solutions Between Monosulfate and Monochromate 3CaO Al2O3 Ca[(CrO4)x(SO4)1-x] nH2O. Cement and Concrete Research. 2012, vol. 42, No. 1, pp. 158—165. DOI: 10.1016/j.cemconres.2011.09.005.

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Application of the coal-mining waste in building ceramics production

Vestnik MGSU 12/2014
  • Vaysman Yakov Iosifovich - Perm National Research Polytechnic University (PNRPU) Doctor of Medical Sciences, Professor, scientific supervisor, Department of Environmental Protection, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy pr., Perm, 614990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pugin Konstantin Georgievich - Perm National Research Polytechnic University (PNRPU) Candidate of Technical Sciences, Associate Professor, Department of Automobiles and Production Machines, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy prospekt, Perm, 614990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Gayday Maksim Fedorovich - Perm National Research Polytechnic University (PNRPU) postgraduate student, Department of Environmental Protection, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy pr., Perm, 614990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Semeynykh Natal’ya Sergeevna - Perm National Research Polytechnic University (PNRPU) Candidate of Technical Sciences, Associate Professor, Department of Construction Engineering and Materials Science, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy pr., Perm, 614990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 131-140

In the process of construction ceramics production a substantial quantity of non-renewable natural resources - clays - are used. One of the ways of science development in building materials production is investigation of the possibility of regular materials production using technogenic waste. Application of coal-mining waste (technogenic raw material) in charge composition for production of ceramic products provides rational use of fuel, contributes to implementation of resource saving technologies on construction materials production enterprises. Though science development on revealing new raw material sources should be conducted with account for safety, reliability, technical, ecological and economical sides of the problem, which is especially current. The article deals with the problem of coal-mining waste usage in building ceramics production instead of fresh primary component (clay), fluxes, thinning agents and combustible additives. The interdependence between the density and shrinkage of the ceramic products and the amount and quality of coal-mining waste in its composition was established. The optimal proportion of coal-mining waste and clay in building ceramics production was estimated.

DOI: 10.22227/1997-0935.2014.12.131-140

References
  1. Shapovalov N.A., Zagorodnyuk L.Kh., Tikunova I.V., Shekina A.Yu. Ratsional’nye puti ispol’zovaniya staleplavil’nykh shlakov [Rational Ways of Steelmaking Slags Use]. Fundamental’nye issledovaniya [Fundamental Research]. 2013, no. 1, pp. 439—443. (In Russian)
  2. Zemlyanushnov D.Yu., Sokov V.N., Oreshkin D.V. Ekologo-ekonomicheskie aspekty primeneniya tonkodispersnykh otkhodov mramora v proizvodstve oblitsovochnykh keramicheskikh materialov [Environmental and Economic Aspects of Using Marble Fine Waste in the Manufacture of Facing Ceramic Materials]. Vestnik MGSU [Proceedings of Moscow State University of Structural Engineering]. 2014, no. 8, pp. 118—126. (In Russian)
  3. Malaiskiene J., Kizinievic V., Maciulaitis R., Semelis E. Infl uence of Assorted Waste on Building Ceramic Properties. Materials Science (Medziagotyra). 2012, no. 4, pp. 396—402.
  4. Ryazanov A.N., Vinnichenko V.I. Ekologicheskie i ekonomicheskie aspekty ispol’zovaniya uglesoderzhashchikh otkhodov pri proizvodstve stroitel’nykh materialov [Ecological and Economic Aspects of Carbonaceous Waste Use in the Production Process of Construction Materials]. Vistnik NTU «KhPI» [Proceedings of National Technical University Kharkiv Polytechnic Institute]. 2012, no. 63 (939), pp. 145—152. (In Russian)
  5. Khlystov A.I., Shirokov V.A., Chernova E.A. Primenenie mineral’nykh shlamovykh otkhodov v protsessakh sintezirovaniya zhidkikh fosfatnykh svyazok [Application of Mineral Slurry Waste in Processes of Synthesizing of Liquid Phosphatic Sheaves]. Vestnik Yuzhno-Ural'skogo gosudarstvennogo universiteta. Seriya: Stroitel’stvo i arkhitektura [Proceedings of Southern Ural State University. Construction and Architecture Series]. 2013, vol. 13, no. 2, pp. 43—46. (In Russian)
  6. Kalinina E.V. Utilizatsiya shlamov karbonata kal’tsiya v proizvodstve tovarnykh produktov stroitel’noy otrasli [Utilization of Slimes of a Calcium Carbonate in Production of Commodity Products of Construction Branch]. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Urbanistika [Proceedings of Perm National Research Polytechnic University. Urban Planning]. 2012, no. 1, pp. 97—113. (In Russian)
  7. Ramesh M., Karthic K.S., Karthikeyan T., Kumaravel A. Construction Materials from Industrial Wastes — A Review of Current Practices. International Journal of Environmental Research and Development. 2014, no. 4, pp. 317—324.
  8. Karrar R.K., Pandey R.K. Study of Management and Control of Waste Construction Materials in Civil Construction Project. International Journal of Engineering and Advanced Technology. 2013, vol. 2, no. 3, pp. 345—350.
  9. Behera M., Bhattacharyya S.K., Minocha A.K., Deoliya R., Maiti S. Recycled Aggregate from C&D Waste and its Use in Concrete — A Breakthrough towards Sustainability in Construction Sector: A Review. Construction and Building Materials. 2014, vol. 68, pp. 501—516. DOI: http://dx.doi.org/10.1016/j.conbuildmat.2014.07.003.
  10. Brozovsky J., Fojtik T., Martinec P. Impact of Fine Aggregates Replacement by Fluidized Fly Ash to Resistance of Concretes to Aggressive Media. Construction Materials. 2006, no. 5, pp. 4—10.
  11. Pati D.J., Iki K., Homma R. Solid Waste as a Potential Construction Material for Cost-Efficient Housing in India. 3rd World Conference on Applied Sciences, Engineering & Technology. Kathmandu, 2014, pp. 240—245.
  12. Oreshkin D.V. Problemy stroitel’nogo materialovedeniya i proizvodstva stroitel’nykh materialov [Problems of Construction Materials Science and Production of Construction Materials]. Stroitel’nye materialy [Construction Materials]. 2010, no. 11, pp. 6—9. (In Russian)
  13. Wagner L.E., Jones M.M. The Attenuation of Chemical Elements in Acidic Leachates from Coal Mineral Wastes by Soils. Environmental Geology and Water Sciences. 1984, vol. 6, no. 3, pp. 161—170. DOI: http://dx.doi.org/10.1007/BF02509910.
  14. Buravchuk N.I., Gur'yanova O.V., Okorokov E.P., Pavlova L.N. Perspektivnye napravleniya utilizatsii otkhodov dobychi i szhiganiya ugley [Perspective Directions of Recycling of Coal Mining and Combustion]. Sotrudnichestvo dlya resheniya problemy otkhodov : materialy V Mezhdunarodnoy konferentsii [Materials of the 5th International Conference “Cooperation for Solving the Problem of Waste”]. Kharkiv, 2008, pp. 120—123. (In Russian)
  15. Meshchaninov F.V. Termobarogeokhimicheskie modeli transformatsii porod otvalov ugol’nykh shakht Vostochnogo Donbassa [Fluid Inclusion Models of Transformation of Waste Heaps of East Donbas Coal Pits]. Nauchnaya konferentsiya aspirantov i soiskateley : tezisy dokladov [Scientific Conference of Postgraduates and Doctoral Candidates : Report Theses]. Rostov on Don, 2001, pp. 49—51. (In Russian)
  16. Batalin B.S., Belozerova T.A., Gayday M.F., Makhover S.E. Keramicheskiy kirpich iz terrikonikov Kizelovskogo ugol’nogo basseyna [Ceramic Brick of Waste Heaps of the Kizelovsky Coal Basin]. Stroitel'nye materialy, oborudovanie, tekhnologii 21 veka [Construction Materials, Equipment, Technologies of the 21st Century]. 2012, no. 11, pp. 18—22. (In Russian)
  17. Knigina G.I. Stroitel’nye materialy iz gorelykh porod [Construction Materials of Burned Rocks]. Moscow, Stroyizdat Publ., 1966, 207 p. (In Russian)
  18. Batalin B.S., Belozerova T.A., Gayday M.F. Stroitel’naya keramika iz terrikonikov Kizelovskogo ugol’nogo basseyna [Construction Ceramics of Waste Heaps of the Kizelovsky Coal Basin]. Steklo i keramika [Glass and Ceramics]. 2014, no. 3, pp. 8—10. (In Russian)
  19. Abdrakhimov V.Z., Vdovina E.V. Issledovanie zhelezosoderzhashchego syr’ya i ego klassifikatsiya po funktsional’noy prigodnosti v proizvodstve keramicheskikh materialov [Research of Ferriferous Raw Materials and their Classification by Functional Suitability in Production of Ceramic Materials]. Samara, SGASU Publ., 2010, 118 p. (In Russian)
  20. Lukin E.S., Andrianov N.T. Tekhnicheskiy analiz i kontrol’ proizvodstva keramiki [Technical Analysis and Control of Ceramics Production. 2nd edition, revised and enlarged.]. Moscow, Stroyizdat Publ., 1986, 271 p. (In Russian)

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Obtaining and physical mechanical properties of cement composites with the use of fillers and mixing water from the Chechen Republic fields

Vestnik MGSU 12/2014
  • Erofeev Vladimir Trofimovich - Ogarev Mordovia State University (MGU im. Ogareva) Doctor of Technical Sciences, Professor, Chair, Department of Construction Materials and Technologies, dean, Department of Architecture and Construction, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (8342) 47-40-19; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bazhenov Yuriy Mikhailovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Binders and Concrete Technology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (495) 287-49-14, ext. 31-02, 31-03, 31-01; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Balatkhanova Elita Mahmudovna - Ogarev Mordovia State University (MGU im. Ogareva) doctoral candidate, Department of Construction Materials and Technologies, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (8342) 47-40-19; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mitina Elena Aleksandrovna - Ogarev Mordovia State University (MGU im. Ogareva) Candidate of Technical Sciences, Associate Professor, Department of Highways and Special Engineering Structures, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (8342) 47-40-19; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Emel’yanov Denis Vladimirovich - Ogarev Mordovia State University (MGU im. Ogareva) Candidate of Technical Sciences, Senior Lecturer, Department of Construction Materials and Technologies, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Rodin Alexander Ivanovich - Ogarev Mordovia State University (MGU im. Ogareva) Candidate of Technical Sciences, Senior Lecturer, Department of Economy and Management in Construction, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (8342) 47-40-19; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Karpushin Sergey Nikolaevich - Ogarev Mordovia State University (MGU im. Ogareva) postgraduate student, Department of Construction Materials and Technologies, Ogarev Mordovia State University (MGU im. Ogareva), 68 Bol’shevistskaya str., Saransk, 430005, Russian Federation; +7 (987) 692-36-98; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 141-151

Improving physical mechanical and operational properties of concretes and other composite materials is one of the most important tasks in construction material science. At the present time various methods are applied for that, which includes the use of additives, composite binders, activated mixing water, etc. Composite construction materials based on cement binders with mineral additives are widelu used, because they possess improved physical mechanical and technological properties. Implementation of additives improve placeability and nonsegregation factors of concrete and mortar mixes, lead to compaction of concrete and mortars structure. The additives substantially lower heat generation of concretes, which is of great importance in concrete casting of large structures. The article presents the results of experimental studies of cement composites filled with powders of rocks and mixable with activated water from the deposits of the Chechen Republic. The soundness of cement compositions with the additives of mountain and river limestone, sandstone and quartz sand was established. The results of experimental studies on establishing the effect of fine and coarse aggregate on strength formation of cement composites activated by water mixing were presented.

DOI: 10.22227/1997-0935.2014.12.141-151

References
  1. Bazhenov Yu.M., Fedosov S.V., Erofeev V.T., Matvievskiy A.A., Mitina E.A., Emel’yanov D.V., Yudin P.V. Tsementnye kompozity na osnove magnitno- i elektrokhimicheski aktivirovannoy vody zatvoreniya [Cement Composites on the Basis of the Magnetic and Electrochemical Activated Mixing Water]. Saransk, Mordovia University Publ., 2011, 128 p. (In Russian)
  2. Bazhenov Yu.M., Fomichev V.T., Erofeev V.T., Fedosov S.V., Matvievskiy A.A., Osipov A.K., Emel’yanov D.V., Mitina E.A., Yudin P.V. Teoreticheskoe obosnovanie polucheniya betonov na osnove elektrokhimicheski- i elektromagnitnoaktivirovannoy vody zatvoreniya [Theoretical Justification of Obtaining Concretes on a Basis of Electrochemical and electromagnetically-driven Water]. Internet-Vestnik VolgGASU. Seria: Politematicheskaya [Internet Proceedings of Volgograd State University of Architecture and Civil Engineering. Series: Polytematic]. 2012, vol. 2 (22), p. 4. Available at: http://vestnik.vgasu.ru/attachments/1_Bazhenov-Fomichev-2012_2(22).pdf/. Date of access: 15.07.2014. (In Russian)
  3. Erofeev V.T., Fomichev V.T., Emel’yanov D.V., Rodin A.I., Eremin A.V. Vliyanie aktivirovannoy vody zatvoreniya na strukturoobrazovanie tsementnykh past [Infl uence of the Activated Water on Structurization of Cement Pastes]. Vestnik Vestnik Volgogradskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. Seriya: Stroitel’stvo i arkhitektura [Proceedings of Volgograd State University of Architecture and Civil Engineering. Series: Construction and Architecture]. 2013, vol. 30 (49), pp. 179—183. (In Russian)
  4. Kalashnikov V.I., Erofeev V.T., Moroz M.N., Troyanov I.Yu., Volodin V.M., Suzdal’tsev O.V.Nanogidrosilikatnye tekhnologii v proizvodstve betonov [Nanohydrosilicate Technologies for Production of Concretes]. Stroitel’nye materialy [Construction Materials]. 2014, no. 5, pp. 88—91. (In Russian)
  5. Jung V.N. Osnovy tekhnologii vyazhushchikh veshchestv [Bases of the Technology of Binding Substances]. Moscow, Gosstroyizdat Publ., 1951, pp. 509—511. (In Russian)
  6. Kaprielov S.S., Travush V.I., Karpenko N.I., Sheynfel’d A.V., Kardumyan G.S., Kiseleva Ya.A., Prigozhenko O.V. Modifi tsirovannye betony novogo pokoleniya v sooruzheniyakh MMDTs «Moskva-Siti» [Modifi ed Concretes of New Generation in the Constructions of Business Centre “Moscow City”]. Stroitel’nye materialy [Construction Materials]. 2006, no. 10, pp. 13—18. (In Russian)
  7. Entin Z.B., Khomich V.Kh., Ryzhov L.K. i dr. Ekonomiya tsementa v stroitel’stve [Economy of Cement in Construction]. Moscow, Stroyizdat Publ., 1985, 222 p. (In Russian)
  8. Takhirov M.K. Rol’ prirody poverkhnosti v protsessakh strukturoobrazovaniya tsementnoy kompozitsii s voloknistym napolnitelem [Role of the Surface Nature in the Processes of Structurization of Cement Composition with a Fibrous Filler]. MIIT. Trudy [Moscow State University of Railway Engineering. Works]. Vyp. 902. Novoe v stroitel'no materialovedenii : mezhvuzovskiy sbornik [No. 902. New in Construction Material Science : Interuniversity Collection]. V.I. Solomatov, editor . Moscow, MIIT Publ., 1997, pp. 48—51. (In Russian)
  9. Adamtsevich A.O., Pustovgar A.P., Eremin A.V., Pashkevich S.A. Issledovanie vliyaniya formiata kal’tsiya na protsess gidratatsii tsementa s uchetom fazovogo sostava i temperaturnogo rezhima tverdeniya [Research of the Infl uence of Calcium Formate on the Process of Cement Hydration with Account for the Phase Structure and Temperature Mode of Curing]. Stroitel’nye materialy [Construction Materials]. 2013, no. 7, pp. 59—62. (In Russian)
  10. Makridin N.I., Tarakanov O.V., Maksimova I.N., Surov I.A. Faktor vremeni v formirovanii fazovogo sostava struktury tsementnogo kamnya [Time Factor in the Formation of Phase Composition of a Cement Stone Structure]. Regional’naya arkhitektura i stroitel’stvo [Regional Architecture and Construction]. 2013, no. 2, pp. 26—31. (In Russian)
  11. Zozulya P.V. Karbonatnye porody kak zapolniteli i napolniteli, v tsementakh, tsementnykh rastvorakh i betonakh [Carbonate Breeds as Aggregates and Fillers, in Cements, Cement Mortars and Concretes]. Giprotsement-nauka [Giprotsement Science]. Available at http://www.giprocement.ru/about/articles.html/p=25/. Date of access: 06.10.2009. (In Russian)
  12. Chekhov A.P., Sergeev A.M., Dibrov G.D. Spravochnik po betonam i rastvoram [Reference Book on Concretes and Solutions]. 3rd edition, revised and enlarged. Kiev, Budivel’nik Publ., 1983, pp. 34—35. (In Russian)
  13. Lothenbach B., Le Saout G., Ben Haha M., Figi R., Wieland E. Hydration of a lowalkali CEM III/B–SiO2 cement (LAC). Cement and Concrete Research. 2012, vol. 42, no. 2, pp. 410—423. DOI: http://dx.doi.org/10.1016/j.cemconres.2011.11.008.
  14. Jansen D., Goetz-Neunhoeffer F., Lothenbach B., Neubauer J. The Early Hydration of Ordinary Portland Cement (OPC): An Approach Comparing Measured Heat Flow with Calculated Heat Flow from QXRD. Cement and Concrete Research. 2012, vol. 42, no. 1, pp. 134—138. DOI: http://dx.doi.org/10.1016/j.cemconres.2011.09.001.
  15. Jeffrey W. Bullard, Hamlin M. Jennings, Richard A. Livingston, Andre Nonat, George W. Scherer, Jeffrey S. Schweitzer, Karen L. Scrivener, Jeffrey J. Thomas. Mechanisms of Cement Hydration. Cement and Concrete Research. 2011, vol. 41, no. 12, pp. 1208—1223. DOI: http://dx.doi.org/10.1016/j.cemconres.2010.09.011.
  16. Nguyen Van Tuan, Guang Ye, Klaas van Breugel, Oguzhan Copuroglu. Hydration and Microstructure of Ultra High Performance Concrete Incorporating Rice Husk Ash. Cement and Concrete Research. 2011, vol. 41, no. 11, pp. 1104—1111.
  17. Pashkevich S., Pustovgar A., Adamtsevich A., Eremin A. Pore Structure Formation of Modified Cement Systems, Hardening over the Temperature Range from +22°C to –10°C. Applied Mechanics and Materials. 2014, vols. 584—585, pp. 1659—1664.
  18. Sabine M. Leisinger, Barbara Lothenbach, Gwenn Le Saout, C. Annette Johnson. Thermodynamic Modeling of Solid Solutions Between Monosulfate and Monochromate 3CaO—Al2O3—Ca[(CrO4)x(SO4)1-x]?nH2O. Cement and Concrete Research. 2012, vol. 42, pp. 158—165. DOI: 10.10.16/j.cemcoures.2011.09.005.
  19. Stork Yu. Teoriya sostava betonnoy smesi [Theory of Concrete Mix Composition]. Transl. from Slovakian by M.A. Smyslova. Leningrad, Stroyizdat Publ., 1971, 238 p. (In Russian)
  20. Hewlett P. Lea’s Chemistry of Cement and Concrete. Butterworth-Heinemann, 2003. 1092 p.

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Asymptotics of the filtration problem for suspension in porous media

Vestnik MGSU 1/2015
  • Kuzmina Ludmila Ivanovna - Higher School of Economics Department of Applied Mathematics, Moscow Institute of Electronics and Mathematics, Higher School of Economics, 20 Myasnitskaya str., Moscow, 101000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Osipov Yuri Viktorovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Physical and Mathematical Sciences, Associate Professor, Department of Computer Science and Applied Mathematics, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe Shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 54-62

The mechanical-geometric model of the suspension filtering in the porous media is considered. Suspended solid particles of the same size move with suspension flow through the porous media - a solid body with pores - channels of constant cross section. It is assumed that the particles pass freely through the pores of large diameter and are stuck at the inlet of pores that are smaller than the particle size. It is considered that one particle can clog only one small pore and vice versa. The particles stuck in the pores remain motionless and form a deposit. The concentrations of suspended and retained particles satisfy a quasilinear hyperbolic system of partial differential equations of the first order, obtained as a result of macro-averaging of micro-stochastic diffusion equations. Initially the porous media contains no particles and both concentrations are equal to zero; the suspension supplied to the porous media inlet has a constant concentration of suspended particles. The flow of particles moves in the porous media with a constant speed, before the wave front the concentrations of suspended and retained particles are zero. Assuming that the filtration coefficient is small we construct an asymptotic solution of the filtration problem over the concentration front. The terms of the asymptotic expansions satisfy linear partial differential equations of the first order and are determined successively in an explicit form. It is shown that in the simplest case the asymptotics found matches the known asymptotic expansion of the solution near the concentration front.

DOI: 10.22227/1997-0935.2015.1.54-62

References
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  3. Khilar K.C., Fogler H.S. Migrations of Fines in Porous Media. Dordrecht, Kluwer Academic Publishers, 1998, 173 p.
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  5. Tufenkji N. Colloid and Microbe Migration in Granular Environments: A Discussion of Modeling Methods. Colloidal Transport in Porous Media. 2007, pp. 119—142. DOI: http://dx.doi.org/10.1007/978-3-540-71339-5_5.
  6. Baveye P., Vandevivere P., Hoyle B.L., DeLeo P.C., De Lozada D.S. Environmental Impact and Mechanisms of the Biological Clogging of Saturated Soils and Aquifer Materials. Critical Reviews in Environmental Science and Technology. 1998, vol. 28, pp. 123—191. DOI: http://dx.doi.org/10.1080/10643389891254197.
  7. Vidali M. Bioremediation. An Overview. Pure and Applied Chemistry. 2001, vol. 73, no. 7, pp. 1163—1172. DOI: http://dx.doi.org/10.1351/pac200173071163.
  8. Gitis V., Dlugy C., Ziskind G., Sladkevich S., Lev O. Fluorescent Clays — Similar Transfer with Sensitive Detection. Chemical Engineering Journal. 2011, vol. 174, no. 1, pp. 482—488. DOI: http://dx.doi.org/10.1016/j.cej.2011.08.063.
  9. Bradford S., Kim H., Haznedaroglu B., Torkzaban S., Walker S. Coupled Factors Influencing Concentration-Dependent Colloid Transport and Retention in Saturated Porous Media. Environ. Sci. Technol. 2009, vol. 43 (18), pp. 6996—7002. DOI: http://dx.doi.org/10.1021/es900840d.
  10. You Z., Badalyan A., Bedrikovetsky P. Size-Exclusion Colloidal Transport in Porous Media-Stochastic Modeling and Experimental Study. SPE Journal. 2013, vol. 18, no. 4, pp. 620—633. DOI: http://dx.doi.org/10.2118/162941-PA.
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  14. Civan F. Reservoir Formation Damage : Fundamentals, Modeling, Assessment, and Mitigation. 2nd ed. Amsterdam, Gulf Professional Pub., 2007.
  15. Gitis V., Rubinstein I., Livshits M., Ziskind G. Deep-Bed Filtration Model with Multistage Deposition Kinetics. Chemical Engineering Journal. 2010, vol. 163, no. 1—2, pp. 78—85. DOI: http://dx.doi.org/10.1016/j.cej.2010.07.044.
  16. Noubactep C., Care S. Dimensioning Metallic Iron Beds for Efficient Contaminant Removal. Chemical Engineering Journal. 2010, vol. 163, no. 3, pp. 454—460.
  17. Yuan H., Shapiro A.A. A Mathematical Model for Non-Monotonic Deposition Profiles in Deep Bed Filtration Systems. Chemical Engineering Journal. 2011, vol. 166, no. 1, pp. 105—115. DOI: http://dx.doi.org/10.1016/j.cej.2010.10.036.
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Settlement determination of operating moisture of autoclaved aerated concrete in different climatic zones

Vestnik MGSU 2/2015
  • Pastushkov Pavel Pavlovich - Research Institute for Building Physics of the Russian Academy of Architecture and Building Sciences (NIISF RAASN) Candidate of Technical Sciences, senior research worker, Research Institute for Building Physics of the Russian Academy of Architecture and Building Sciences (NIISF RAASN), 21 Lokomotivnyy proezd, Moscow, 127238, Russian Federation; +7 (495) 482-40-58; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Grinfel’d Gleb Iosifovich - National Association of Autoclaved Aerated Concrete Producers (NAAG) Executive Director, National Association of Autoclaved Aerated Concrete Producers (NAAG), 40 Oktyabr’skaya naberezhnaya, litera A, St. Petersburg, 193091, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pavlenko Natal’ya Viktorovna - Moscow State Lomonosov University (Institute of Mechanics, MSU) Candidate of Technical Sciences, Associate Professor, senior engineer, Research Institute of Mechanics, Moscow State Lomonosov University (Institute of Mechanics, MSU), 1 Michurinskiy Prospekt, Moscow, 119192, Russian Federation; +7 (495) 939-52-82; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bespalov Aleksey Evgen’evich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Soil Mechanics and Geotechnics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-34-38 (ext. 14-29); This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Korkina Elena Vladimirovna - Research Institute for Building Physics of the Russian Academy of Architecture and Building Sciences (NIISF RAASN) research worker, Research Institute for Building Physics of the Russian Academy of Architecture and Building Sciences (NIISF RAASN), 21 Lokomotivnyy proezd, Moscow, 127238, Russian Federation; +7 (495) 482-40-58; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 60-69

In the process of operation of buildings the moisture state of enveloping structures materials is changing depending on their construction features, properties of the material, temperature and moisture conditions in the premises, climatic conditions of the construction area. Moisture mode determines the operational properties of the enveloping structures of a building. It directly influences the thermal characteristics of enveloping structure and energy efficiency of the applied materials. The analysis of the methods for calculation of moisture behavior of enclosing structures is carried out. The research relevance of operational moisture of AAC is substantiated. Experimental studies and results of the sorption moisturizing and water vapor permeability of leading marks of aerated concrete are carried out. The authors offer the results of numerical calculations of the moisture behavior of aerated concrete in the walls with mark D400 with facade thermal insulation composite systems - with external plaster layers for different climatic zones of construction.

DOI: 10.22227/1997-0935.2015.2.60-69

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