FIELD: chemistry.
SUBSTANCE: invention relates to a concrete mixture and can be used in the industry of construction materials, particularly in production of concrete wall blocks. The concrete mixture contains the following, wt %: portland cement 25.0-27.0; ash-slag filler 32.75-40.8; urea 0.2-0.25; cement clinker ground and sieved through sieve No5 9.0-13.0; water 25.0-27.0.
EFFECT: high frost resistance of concrete.
1 tbl
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