FIELD: chemistry.
SUBSTANCE: invention relates to the industry of construction materials and specifically to making foamed concrete. The crude mixture for making foam concrete contains the following, wt %: portland cement 52.9-55.84, foaming agent PB-2000 0.18-0.22, quartz sand 21.5-22.5, ceramic material ground until passage through sieve No 008 0.5-0.7, liquid potassium glass with density of 1300-1500 kg/m3 with silica modulus of 2.8-3 0.6-0.8, citric acid 0.12-0.14, water 21.0-23.0.
EFFECT: high heat-resistance of foamed concrete obtained from the crude mixture.
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