RAW MATERIAL MIXTURE FOR PRODUCTION OF ASH-AND-SLAG CONCRETE Russian patent published in 2015 - IPC C04B28/26 C04B28/08 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention relates to industry of building materials and can be applied for production of constructions and products. Raw material mixture for preparation of ash-and-slag concrete, which includes binding agent, consisting of liquid glass, is characterised by silicate module n = 1 and density ρ = 1.36-1.40 g/cm³ and produced from technogenic waste from ferrosilicon production of Bratsk ferroalloy plant - microsilica with true density ρ_a = 2270-2510 kg/m³, and fly ash of field I, characterised by bulk density ρ_b = 995-1175 kg/m³, residue on sieve No. 008 13.1% and loss on ignition 0.21-1.14%, as filler - non-utilisable ash-and-slag mixture, formed after combustion of brown coal of KAFEC on TPS-6 of Bratsk city of Irkutsk region and characterised by bulk density ρ_b = 1070-1190 kg/m³, consisting of ash with grain size 0.14 mm and smaller and from slag with grain size 0.315-5 mm with ratio of grains of fractions, %: fr. 5 mm 9.1, fr. 2.5 mm 26.7, fr. 1.25 mm 18.3, fr. 0.63 mm 24.2, fr. 0.315 mm 9.8, fr. 0.14 mm and smaller 11.9, impact strength 13.2-16.8% and coarseness module 3.6 with the following ratio of raw material components, wt %: said fly ash of field I 20.0-20.8, said liquid glass 16.8-20.0, said ash-and-slag mixture 60.0-62.4.

EFFECT: increased strength.

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