Main preconditions for energy conservation building products from gas-steel and foam glass concrete

Abstract

The results of the analysis of known theoretical studies, exploratory and promotional works on the use of man-made cullet for the production of building materials and products for various purposes are presented. The results of laboratory studies of the installation batch of products, including the study of the microstructure and the establishment of the main physical and mechanical parameters that determine the level of their industrial demand: density, compressive strength and water absorption are presented. The qualitative and quantitative laws of changes in indicators from the fractional composition of the main filler — ground glass are established. The obtained nonlinear dependence of the product density on the size of the fraction shows a significant increase with the size of cullet grains over 2 mm, which indicates the predominance of the main filler in the entire volume of the mixture. The dependence of the compressive strength of the samples on the size of the fraction has a pronounced extremum with a fraction size of ~2 mm. This is determined by the change in the ratio of internal forces between the particles of the mixture. The coefficient of water absorption also increases nonlinearly with increasing gaps between the particles of the main filler and other components of the mixture. The obtained values of the indicators are within the limits regulated by state standards, their variations will be refined for different conditions of use of industrial materials and products.