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Vol.22, No.1, 2022, pp. 48–56 |
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INSULATION PROPERTIES AND PERFORMANCE OF FOAM CONCRETE USING BLAST FURNACE SLAG Kim Dien Vu1*, Sofya Ildarovna Bazhenova1, Trong Chuc Nguyen2, Van Lam Tang3, Minh Chien Do4, Van Loi Le4, Minh Thuan Hoang4 1) National Research Moscow State University of Civil Engineering, Moscow, RUSSIA email: kimdienxdtb@gmail.com 2) Le Quy Don Technical University, VIETNAM 3) Hanoi University of Mining and Geology, VIETNAM 4) College of Industrial and Constructional Eng., VIETNAM
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Abstract The paper presents studies on foam concrete with density from 600-1700 kg/m3. The authors use ANSYS 18® software to simulate the heat absorption of concrete foam walls and clay brick walls. The ratio of foam concrete mixture is calculated by the absolute volume method. Besides, the mechanical properties of foam concrete are determined by the Russian standard GOST 10180-2012. Water absorption is determined by using cubic specimens of 150×150×150 at 28 days of age, according to Russian standard GOST 12730.3-78. The elasticity modulus of foam concrete is determined by ASTM C 469-2002 at 28 days of age. Research results show that at the age of 28 days with mix number 3, the value of compressive strength obtained is 9.15 MPa, dry density is 918 kg/m3, thermal conductivity 0.24 W/mK. These properties are better than clay bricks. Besides, ANSYS 18 results show that at the same thickness of 100 mm, a wall with foam concrete blocks has a better insulation capacity than walls made of clay bricks. Keywords: compressive strength, concretes, mechanical properties, brick, slags, thermal conductivity, cements |
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