Widely used in various types of reinforced concrete structures such as commercial buildings (high-grade buildings inside and outside wall and roof and floor), parking lots, garages, warehouses and cold storage, swimming pool, highways, bridges, structures, highways, ports, marine, etc., especially for high-grade concrete structures for use in harsh environments, the highway by salt spray, deicing salt erosion, overpasses, poles, sewage treatment plants, sewage treatment ponds, landfills, great temperature difference between the high altitude and the like.