FIELD: building materials. SUBSTANCE: raw base for producing liquid complex addition to concrete mixture has the following components, wt.-%: sulfur powder 4-35; portland cement 35-55, and water - the rest. Addition is made by intensive stirring the raw mixture components up to complete sulfur dissolving. Mixture can be used in concretes and suspensions of normal hardening. EFFECT: increased strength and hardiness of concrete of normal hardening. 3 cl, 1 tbl
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