FIELD: construction.
SUBSTANCE: invention relates to the building materials industry, in particular to production of concrete. Raw material mixture for producing concrete contains, wt%: portland cement 27.0–29.0; microsilica 3.0–4.0; naphthene soap 0.1–0.2; quartz sand 35.9–46.8; granite crumb of 5–10 mm fraction 6.0–10.0; water 17.0–21.0.
EFFECT: high frost resistance.
1 cl, 1 tbl
| Title | Year | Author | Number |
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RU2648727C1 |
| CRUDE MIXTURE FOR MAKING MATERIAL IMITATING NATURAL STONE | 2013 |
|
RU2508267C1 |
