| 摘要 |
FIELD: manufacture of building materials. ^ SUBSTANCE: invention relates to manufacture of a variety of different-destination building products such as bricks, wall blocks, footway materials, face wall and floor tiles as well as various heat-insulation and structural heat-insulation units like slabs, blocks, shells, and segments showing elevated strength and heat-insulation characteristics based on silica-containing binder using non-expensive mineral raw material and production wastes. Method involves preparing silica-containing binder with density 1.1-2.1 g/cc from mixture composed of inorganic bonding material, silica-containing component, and water under vigorous stirring in high-speed mixer at stirring speed 1500-2500 rpm, stirred particle vibration frequency2000-35000 Hz, and heating to 80-90°C followed by cooling at stirring with speed 40-100 rpm for 10-12 h to 15-25°C. Preparation of molding blend is accomplished by blending 9.0-13.5% of silica-containing binder with silica-containing aggregate, homogenizing the blend, and heat treatment of molded products at 400-950°C. When combustible aggregates are used heat treatment is carried out at 90°C. ^ EFFECT: simplified process, enlarged assortment of products, and improved strength and heat-insulation characteristics thereof. ^ 8 cl, 1 dwg, 5 tbl, 3 ex |
