Keywords
Abstract
In the article, the optimal composition of the arbolite mixture was determined using a preliminary mathematical method for the manufacture of wall panels. With the help of optimal compositions, wall panels were manufactured and its stress state under load was calculated. For the production of arbolite products, the advanced technology of pressed arbolite, manufactured by conveyor method, has been applied. Using the methods of mathematical planning of experiments, the optimal composition was determined – the ratio of rice husk and a multicomponent binder with high strength. A method for calculating the stress state of wall plates based on rice husk and its straw with an internal thermal insulation layer of class B1 arbolite has been developed. Formulas for determining the distribution of tangential stresses along the longitudinal axis of a wall panel along its thickness are obtained. Deviations of the wall plate under the action of an off-center longitudinal load are determined. An experimentally developed method for calculating wall plates has been tested and confirmed. Experimental data on the testing of wall panels based on rice husk and straw of natural size have shown sufficient reliability and adequacy. The water absorption of arbolite based on rice husk and multicomponent binder was 24%, and the thermal conductivity λ = 0.18-0.19 W/ (m·oC). The resulting arbolite has a frost resistance of 30-35 cycles.