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, wt %: cement 29.0-31.0, thermal power plant flue ash 20.0-26.0, extraction-rosin air-entraping resin 0.11-0.17, carboxymethyl cellulose 0.02-0.03, superplasticiser S-3 1.0-1.4, naphthenate soap 0.1-0.2, expanded pearlite sand 20.0-24.0, water - the rest.
EFFECT: low cement consumption.
1 tbl
