PROMISING AREA OF USING LARGE-TONNAGE RESERVES OF TECHNOGENIC AND SUBSTANDARD SIBERIAN RAW MATERIALS IN THE TECHNOLOGY OF BUILDING MATERIALS

The production of materials and products for advanced construction industry based on large-tonnage reserves of substandard and silicate raw materials is relevant. The article presents the results of the analysis of scientific research and practical use of nepheline sludge of the Achinsk Alumina Refinery, zeolite-containing rocks of the Sakhaptynsky deposit in the Krasnoyarsk Region and pyroxene waste from the enrichment of titanium ore of the Kachkanarsky Mining and Processing Plant. Promising areas of use of the considered types of silicate raw materials in the production of building materials are highlighted. Zeolite-containing rocks are effective in obtaining foamedglassceramic materials with a poured density of 430-450 kg/m3, water absorption of 3.5-3.8%, and compressive strength of 6.0-6.4 MPa using a single-stage technology. With a two-stage technology, the bulk density is 330-350 kg/m3 and the strength is 4.3-4.6 MPa. Pyroxene wastes, represented by iron-containing solid solutions of diopside, are promising for use in the production of wall ceramics and facing tiles. Along with the current production of cement clinker based on nepheline sludge, mass production of autoclaved foam silicate wall blocks is promising.