FIELD: construction.
SUBSTANCE: complex modifier to cement concrete includes mineral carrier - carbonate sludge for HPP water softening and surface-active material SAM of reducing action - polycarboxylate ether at the following ratio of components, wt %: specified carbonate sludge - 99.5, polycarboxylate ether - 0.5, with content of specified modifier of 15-20% from cement weight.
EFFECT: higher durability, water and frost resistance, concrete strength.
2 tbl
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