| abstract |
The present invention is applied to the repair and reinforcement object of the structure to form a primer layer, and a primer composition comprising acrylic resin, siloxane, amino compounds, phosphoric acid, nitrite; A cross-section repair composition that is poured into the primer layer to form a cross-section repair layer, and includes cement, silica sand, calcium sulfoaluminate, and silica fume; It characterized in that it comprises a; is poured in the end surface repair layer to form a surface layer, a surface protectant composition comprising a polymer resin, silica, silane, a photocatalyst, and a penetration curing agent. |