FIELD: manufacture of building materials. SUBSTANCE: invention relates to compositions of integrated additives for concrete mixes, in particular to additives assisting concreting at negative temperatures by way of preserving liquid phase necessary for hydration and hardening of cement mortar at temperatures up to -55 C. Additive contains calcium saccharate and calcium chloride at weight ratio (0.0001- 0.001):1. EFFECT: enhanced efficiency of additive and improved strength characteristics of low-temperature concrete. 2 tbl
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