FIELD: chemistry.
SUBSTANCE: invention relates to the industry of construction materials and particularly to making concrete wall blocks. The concrete mixture contains the following, wt %: portland cement 25.0-30.0; slag pumice ground until complete passage through sieve No008 44.85-53.9; modified technical lignosulphonate 0.1-0.15; water 21.0-25.0.
EFFECT: increase in strength of concrete.
1 tbl
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RU2431618C1 |
