Abstract
The article presents the results of research on the development of compositions and the study of the physico-mechanical properties of particularly light perlite concrete. It has been found that the use of foam makes it possible to dramatically increase the volume of cement dough, which makes it possible to mix the solution with brittle, weakly strong grains of expanded perlite sand. As a result of experimental studies, perlite concrete was obtained with an average dry density of 150-200 kg/m3, compressive strength of 0.32-0.43 MPa, thermal conductivity coefficient of 0.048-0.052 W / (m · ° C). The plates are designed for thermal insulation of residential and public buildings. In the conditions of Almaty, with a plate thickness of 10 cm, the required thermal protection of external structures of buildings is provided.
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