FIELD: chemistry.
SUBSTANCE: invention relates to the industry of construction materials and specifically to making foamed concrete. The crude mixture for making foamed concrete contains the following in wt %: cement 30.0-32.0, blowing agent PB-2000 0.4-0.5, thermal power plant ash 33.0-35.0, carboxymethylcellulose 0.03-0.04, asbestos fibre cut into 3-7 mm pieces 1.5-2.0, water - the rest.
EFFECT: high strength.
1 tbl
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