FIELD: construction.
SUBSTANCE: invention relates to the field of industrial building materials, and can be used in the conduct of repair work in the zone of variable water level of dams, canals, bridges and other hydraulic structures, and concerns the composition of cement-polymer concrete mixture for the repair of hydraulic structures. In the embodiment of a cement-polymer mixture to obtain repair sand concrete, the mixture includes: Portland cement, quartz sand of a fraction from 0.4 to 0.8 mm, an acrylic dispersion, an expanding additive based on aluminate and sulfoaluminate components, polycarboxylate hyperplasticizer and water. In the embodiment of the mixture to obtain repair concrete containing Portland cement, acrylic dispersion, gypsum is used as an expanding additive and crushed stone is additionally included in the mixture.
EFFECT: increased strength, frost resistance and water resistance of the resulting concrete.
2 cl, 5 tbl
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