Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science
  • BUILDING MATERIALS AND PRODUCTS
  • Heat-Insulating Properties Of Effective Light Weight Concretes For Three-Layer Protecting Coverings Of Buildings
  • UDC 666.97 DOI: 10.33622/0869-7019.2020.05.36-44
    Vu Dinh THO (Vietnam), e-mail: vuthoks@gmail.com
    Tang Van LAM (Vietnam), e-mail: lamvantang@gmail.com
    Elena A. KOROL, e-mail: KorolEA@mgsu.ru
    Boris I. BULGAKOV, e-mail: BulgakovBI@mgsu.ru
    Olga V. ALEKSANDROVA, e-mail: AleksandrovaOV@mgsu.ru
    Oksana A. LARSEN, e-mail: LarsenOA@mgsu.ru
    Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
    Abstract. Аt present, an intensive change in the structure and materials of building envelopes is taking place in order to increase the energy efficiency of buildings, as well as to improve their appearance and extending the period of maintenance-free operation. The paper presents the results of studies of the physical-mechanical properties of light polystyrene concrete and effective heat-insulation of three-layer structures based on heat-insulating light and structural heavy concrete. To obtain the concrete mixture, Portland cement, granular foam polystyrene, polycarboxylate super-plasticizer, quartz sand and limestone crushed stone were used. All raw materials were of local origin (Vietnam). The composition of the heavy and light concrete mixture was calculated using the absolute volume method according to the standard of Vietnam, the thermal conductivity of concrete was measured with an appropriate device. It has been established that using local surface components it is possible to obtain structural concrete, as well as polystyrene concrete, which has sufficient tensile and tensile strength during bending and heat conduction in the dry state. From the calculations made with the use of the computer program, it follows that the three-layer reinforced concrete coating slab, consisting of heavy and polystyrene concrete, has better thermal insulation properties compared to a coating of the same thickness of solid and perforated structural concrete, as well as with a panel with foam polystyrene blocks.
    Key words: structural heat insulating material, energy efficiency, enclosing structures, thermophysical properties, granular foam polystyrene, average density, thermal conductivity.
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  • For citation: Vu Dinh Tho, Tang Van Lam, Korol E. A., Bulgakov B. I., Aleksandrova O. V., Larsen O. A. Heat-Insulating Properties of Effective Light Weight Concretes for Three-Layer Protecting Coverings of Buildings. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2020, no. 5, pp. 36-44. (In Russian). DOI: 10.33622/0869-7019.2020.05.36-44.

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