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RESEARCH OF BUILDING MATERIALS

Properties of lightweight products made of extruded mixtures, if exposed to deformationand fracture

  • Kaptsov Petr Vladimirovich - Moscow State University of Civil Engineering (MGSU) Director of Laboratory, postgraduate student, Department of Construction Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 56-61

This article covers the study of the properties of lightweight solutions and products made of extruded cement mixtures having hollow glass microspheres. The author presents data on the average density, strength, water vapour permeability, thermal conductivity, per-unit energy consumption, and crack resistance in the course of deformation and complete destruction. The author presents the findings of the studies of the microstructure of hollow glass microspheres; the conclusion is that if the extruded cement mixture has effective and active hollow glass microspheres, the water flow will be less intensive, while compressive strength, bending strength, fracture toughness go up. Analysis of the data shows that the fracture toughness of the material, having hollow glass microspheres and made of the extruded mixture, is higher. This material has a 30...40% higher fracture strength, bending strength and compressive strength, than a regular lightweight composition mixed with HGMS. This article is the fourth one in aseries of articles that discuss methods of extrusion of lightweight cement mixtures.

DOI: 10.22227/1997-0935.2013.9.56-61

References
  1. Oreshkin D.V., Kaptsov P.V. Nauchno-tekhnicheskie predposylki polucheniya ekstrudirovannykh oblegchennykh tsementnykh system [Scientific and Technical Preconditions for Extruded Lightweight Cement Systems]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 3, pp. 11—19.
  2. Oreshkin D.V,, Semenov V.S., Kaptsov P.V. Ekstrudirovannye oblegchennye kladochnye rastvory [Extruded Lightweight Masonry Mortars]. Vestnik Tomskogo GASU [News Bulletin of Tomsk State University of Architecture and Civil Engineering]. 2012, no. 3, pp. 159—163.
  3. Oreshkin D.V. Oblegchennye i sverkhlegkie tsementnye rastvory dlya stroitel'stva [Lightweight and Superlight Cement Mortars for Construction Purposes]. Stroitel'nye materialy [Construction Materials]. 2010, no. 6, pp. 34—37.
  4. Oreshkin D.V., Belyaev K.V., Semenov V.S. Teplofizicheskie svoystva, poristost' i paropronitsaemost' oblegchennykh tsementnykh rastvorov [Thermal-physical Properties, Porosity and Vapour Permeability of Lightweight Cement Mortars]. Stroitel'nye materialy [Construction Materials]. 2010, no.8, pp. 51—55.
  5. Sakharov G.P., Chan Min Dyk. Povyshenie svoystv melkozernistogo betona ekstrudirovaniem iskhodnykh smesey [Improvement of Properties of Fine-grain Concrete Using Method of Extrusion of Initial Mixtures]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 2009, no. 1, pp. 6—8.
  6. Oreshkin D.V. Problemy stroitel'nogo materialovedeniya i proizvodstva stroitel'nykh materialov [Problems of the Construction Material Science and Production of Construction Materials]. Stroitel'nye materialy [Construction Materials]. 2010, no. 11, pp. 6—8.
  7. Eberhardsteiner J., Zhdanok S., Khroustalev B., Batsianouski E., Samtsou P., Leonovich S. Characterization of the Influence of Nanomaterials on the Mechanical Behavior of Cement Stone. Journal of Engineering Physics and Thermophysics. July 2011, vol. 84, no. 4, pp. 8—10.
  8. Belyaev K.V., Oreshkin D.V., Bliznyukov V.Yu., Pervushin G.N. Metody opredeleniya i povysheniya treshchinostoykosti oblegchennykh tamponazhnykh materialov [Methods of Identification and Improvement of Fracture Strength of Lightweight Backfill Materials]. Neftyanoe khozyaystvo [Oil Economy]. 2003, no. 6, pp. 42—46.
  9. Oreshkin D.V., Pervushin G.N. Parametry deformirovaniya i razrusheniya tamponazhnogo kamnya s mikrosferami posle pulevoy perforatsii [Parameters of Deformation and Destruction of Backfill Stone Having Microspheres Following Bullet Perforation]. Vestnik grazhdanskikh inzhenerov [News Bulletin of Civil Engineers]. 2009, no. 4, pp. 164—166.

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