CEMENT COMPOSITE AND ITS MANUFACTURING METHOD

摘要

The invention provides a cement composite and its formation method, in which a specific substance block agent is coated on a hardened cement product, thereby effectively blocking off substances responsible for corrosion and cracking, holding back carbonation of the hardened cement product and making the hardened cement product less likely to turn white. In the cement composite, a hardened cement product is coated with a substance block agent composed chiefly of an aqueous dispersion of synthetic resin, a swelling clay mineral and a pigment. The swelling clay mineral is a swelling clay mineral containing fluorine; the substance block agent contains a water-soluble resin; and the substance block agent is coated on the hardened cement product in an amount of 50 to 500 g/m 2 . The invention also provides a cement composite formation method, characterized in that the substance block agent is coated on the surface of the hardened cement product.