NANOCOMPOSITE COATINGS FOR PROTECTION OF CONCRETE SURFACES

摘要

A method of bonding a coating material to concrete is disclosed. The process includes applying a coating material to an inner surface of a mold, applying an aqueous solution of a polymeric material and a clay to the coating material and pouring concrete into the mold. Once the concrete is set, the coated concrete is removed from the mold. Alternatively, the polymer/clay composite may be applied by dipping, spraying, brushing or fluidized bed process to a concrete surface before application of a pigment or other coating material. The polymer/clay composite serves as an interface between the concrete and the pigment or other coating, imparting adhesion and moisture barrier properties and protecting pigments from degradation by ultraviolet light or the chemical environment produced in the concrete.