RAW MIX FOR PREPARATION OF ACID RESISTANT FLY-ASH SLAG CONCRETE Russian patent published in 2008 - IPC C04B28/26 C04B111/23 

FIELD: construction.

SUBSTANCE: invention refers to the industy of construction materials and can be used for production of structures and products of acid resistant concrete on the base of fly-ash slag aggregate. The raw mix for preparation of acid resistant fly-ash slag concrete includes the aggregate - waste fly-ash slag mix of Irkutsk TPP-6 in the town of Bratsk, obtained from burning of brown coal KATEK of Irsha-Borodinskiy open-pit coal mine with the bulk density of the fly-ash slag mix p=1300 kg/m³ and grain size of 0.315-10.0 mm and cementing agent that consists of fly-ash of field II obtained from burning of brown Kansk-Achinsk coal at TPP-7 in the town of Bratsk of Irkutsk region and liquid glass made from multi-tonnage residuals of ferrosilicon production in Bratsk ferro-alloy factory - microsilica containing finely dispersed carbonic impurities: 9 mass % black lead C and 8 mass % β-modification silicon carbide βSiC, with silica module n=1-2 and density p=1.35 -1.40 g/cm³, with the following mixing ration, mass %: specified fly ash 18.9-20.4, specified liquid glass 18.4-24.5, specified fly-ash slag mix 56.6-61.2.

EFFECT: increase of acid resistance of concrete and simultaneous simplification of method of its producing, final product cost reduction.

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