FIELD: chemistry.
SUBSTANCE: concrete mixture contains, wt %: portland cement 25.0-27.0; quartz sand 42.94-47.9; polyethylene granules sieved through sieve No. 5 10.0-15.0; crumb of foam polyethylene sieved through sieve No. 10 0.06-0.1; water 14.0-17.0.
EFFECT: increased strength.
1 tbl
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