CRUDE MIXTURE FOR MAKING ASH-ALKALINE CONCRETE Russian patent published in 2015 - IPC C04B28/26 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of construction materials and can be used in making structures and articles. A crude mixture for making ash-alkaline concrete, which includes binder consisting of II field flue ash with true density ρ_i=2590-2800 kg/m³ and losses after calcination of 3.1-4.9%, obtained from burning KATEK brown coal at Irkutsk TPP-7, and liquid glass with silica modulus n=0.9-1.4 and density ρ=1.36-1.38 g/cm³, made from Bratsk Ferroalloy Plant wastes - microsilica with true density ρ_i=2120-2280 g/cm³, and filler in the form of screenings from crushing diabase into rock chips with true density ρ_i=2850-3120 kg/m³, crushability strength of 10.4-13.1%, with the following ratio of grains of fractions, wt %: fr. 5 mm 55.0, fr. 2.5 mm 27.3, fr.1.25 mm 2.75, fr. 0.63 mm 4.64, fr. 0.315 mm 3.62, fr. 0.14 mm 6.69 and fineness modulus of 4.47, with the following ratio of components of the crude mixture, wt %: field II flue ash 21.74-22.22, said liquid glass 11.12-13.04, said screenings from crushing diabase 65.22-66.66.

EFFECT: high strength.

5 tbl