FIELD: chemistry.
SUBSTANCE: invention relates to the industry of construction materials and specifically to making concrete wall blocks for low-height construction. The crude mixture for making light concrete contains the following in wt %: portland cement 42.0-44.0; granular foamed polystyrene 0.5-1.0; basalt fibre 2.0-3.0; saponified wood resin 0.1-0.15; plasticiser C-3 0.9-1.3; water - the rest.
EFFECT: high strength of light concrete made from the crude mixture.
1 tbl
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