ENERGY-EFFICIENT LIGHTWEIGHT CONCRETE FOR GREEN CONSTRUCTION

This article presents the results of studies of energy-efficient wood concrete using ash Astana-Energy CHPP-2. It was found that the use of ash improves the adhesion of rice husks with cement and has a positive effect on the workability of the wood concrete mixture. The optimal ash content of lightweight concrete is 10%, since a further increase in its amount reduces strength by 30-41%. As a result the composition of energy-efficient wood concrete on rice husk for energy-efficient construction was obtained. It was also found that when rice husks are treated with chemical additives, the strength of its adhesion to cement stone changes, and when soaked in water at 40°C with the addition of liquid glass and urea, it increases by 40%.