FIELD: chemistry.
SUBSTANCE: invention relates to production of construction materials and can be used in making articles used in building and heat insulation of residential and industrial buildings. The crude mixture for making foamed concrete contains the following, wt %: portland cement 28.0-30.0, gaize 30.0-32.0, aluminium powder 0.2-0.51, hemihydrate gypsum 0.5-1.5, sodium hydroxide 1.3-2.0, water 36.0-38.0.
EFFECT: obtaining foamed concrete with low density and high strength.
1 ex
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