FIELD: construction.
SUBSTANCE: structure for preparation of a building mortar and fine-grained concrete mix comprises by wt %: basalt with the average size 360±98 - 30-40%; silicon dioxide containing rock with the average size 266±69 - the rest.
EFFECT: increase of strength of building mortars and fine-grained concrete mixes.
2 dwg, 2 tbl
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RU2482082C2 |
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