FIELD: construction.
SUBSTANCE: raw mix for manufacture of fine-grained concrete contains, wt %: Portland cement 22.0-25.0; ash after burning of brown or black coal 64.5-70.0; quartz sand 7.0-10.0; asbestos 0.9-1.4; 3% hydrogen peroxide solution 0.05-0.1, at the water cement ratio 0.45-0.5.
EFFECT: increase of frost resistance.
1 tbl
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