METHOD TO PRODUCE BINDER Russian patent published in 2012 - IPC C04B40/00 C04B12/04 

FIELD: construction.

SUBSTANCE: in the method to produce a binder, including dosing a silica-alumina component of a binder represented by fly ash produced by burning brown Kansko-Achinskiy coal at the TPP-7 in Bratsk, Irkutsk region, and an alkaline component - liquid glass made from large-tonnage wastes of ferrosilicon production at Bratsk ferroalloy plant - microsilica, and containing up to 15-17 wt % of admixtures - flaky graphite and β-carborundum, with silicate module n=1, their mixing, the silica-alumina component of the binder is fly ash with apparent density ρa=820-960 kg/m³, and the alkaline component is liquid glass with densities ρ=1.22 g/cm³ and ρ=1.35 g/cm³, at the following ratio of components, wt %: specified fly ash 62.3-62.7, specified liquid glass with ρ=1.22 g/cm³ 21.9-25.2, specified liquid glass with ρ=1.35 g/cm³ 12.5-15.6, and liquid glass is fed sequentially: at first ash is tempered with liquid glass with ρ=1.22 g/cm³, and after mixing, the liquid glass is added to the mixture with ρ=1.35 g/cm³.

EFFECT: extended time of binder setting.

1 ex, 1 tbl