Development of technological options for obtaining construction materials on the basis of woodworking waste

Abstract

It was found that the most promising method of pretreatment of plant raw materials is biological activation, or biofermentation. Biofermentation of wood aggregate was carried out in a laboratory bioreactor with the help of microorganisms contained in the substrate of animal origin - manure. Biofermentation of sawdust led to a decrease in its content of water-soluble reducing substances and, as a consequence, to an improvement of the construction-technical indicators of wood-cement composition. Pilot samples of sawdust-concrete on biologically activated aggregate were obtained and their main physical and mechanical properties were determined. The project of technological regulations of biologically activated sawdust-concrete production and a variant of using this material as an insulator of a layered panel were developed.