FIELD: manufacture of building materials.
SUBSTANCE: invention relates to composition of powdered complex additive for building mixes, including concretes and mortars used in manufacture of concrete and reinforced-concrete units. Additive comprises of 20-50% Relaksol and additionally 20-40% of industrial-grade lignosulfonates, and superplasticizer S-3 in balancing amount, said Relaksol being a mixture of ballast salts produced in desulfurization process and based on sodium thiosulfate and sodium thiocyanate.
EFFECT: prevented wall saltpetre on part surfaces and reduced atmosphere-caused corrosion resistance at the same strength and frost resistance.
2 tbl
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