RAW MATERIALS MIXTURE FOR PREPARATION OF ASH-SLAG CONCRETE Russian patent published in 2002 - IPC

FIELD: manufacture of building materials; applicable in manufacture, both, cast-in-situ and built-up structures and products from concrete based on ash-slag filler. SUBSTANCE: raw materials mixture for preparation of ash-slag concrete includes binder consisting of ground dump ash-slag mixture produced by combustion of Kansh-Achinsk brown coal, Bratsk city, Irkutsk heat and electric power plant, and water glass made of large-tonnage waste of production of crystalline silicon of Bratsk aluminum plant in form of microsilica and containing carbon impurities-graphite and carborundum, and filler. Raw materials mixture contains ground to residue on sieve No.008 3.3% of said ash- slag mixture of TETs-6. Said water glass density is of 1.46 g/cu. cm. Filler in form of nonground dump ash-slag mixture of Irkutsk TETs-6 of Bratsk city with grains sizing 0.14-5 mm produced by combustion of brown Kans-Achinsk coal with the following amounts of mixture components, wt. %: said ground ash-slag mixture 13.7-40; said water glass 17.8-20; said nonground ash-slag mixture 40-68.5. EFFECT: produced water- and acid-resistant concretes reduced costs of manufactured products. 4 tbl