| abstract |
The present invention relates to a cement admixture comprising 1 to 85% by weight of a modified binder and 15 to 99% by weight of a functional admixture, wherein the modified binder comprises 25 to 90% by weight of heavy calcium carbonate (ground calcium carbonate) 1 to 20% by weight of meta-kaolin, 1 to 20% by weight of tricalcium aluminate cement, 1 to 30% by weight of stellite, 1 to 30% 0.1 to 15% by weight of aluminum titanate and 0.1 to 15% by weight of beryllium oxide, wherein the functional admixture comprises 20 to 99% by weight of a methyl acrylate-methyl methacrylate copolymer based on the weight of the functional admixture, vinylidene chloride- 0.1 to 20% by weight of butadiene-acrylonitrile copolymer, 0.1 to 20% by weight of butanediol monoacrylate, 0.1 to 20% by weight of polychloroprene rubber and 0.1 to 20% by weight of organic modified polysiloxane ≪ RTI ID = 0.0 > The present invention relates to an eco-friendly functional surface protective composition for protecting structures, and to a surface protection finishing method for concrete structures using the same. According to the present invention, the eco-friendly functional surface protective composition and the surface protection finish composition are quick-drying, shortening the construction period, reducing the construction cost, extending the maintenance period and improving the workability, workability, strength, stain resistance, It has excellent durability such as flame retardancy, neutralization resistance, and freezing and thawing resistance, thus extending the durability of concrete structures under harsh environments, reducing maintenance costs and improving workability. |