Application of hot galvanizing on concrete reinforcement

Concrete reinforcing steel bar is the main material in modern construction, concrete to steel provides an alkaline environment, can prevent the steel bar corrosion, but as a result of chlorine, carbon dioxide in the atmosphere, and the effect of acid rain, changed the alkaline environment, make the steel bar corrosion, corrosion product volume increase of The Times, to produce internal stress in the reinforced concrete, and generate the early 2 ~ 10 start crack, crack cause crack expansion, and exacerbating medium corrosion of reinforcement, which will further lead to the fracture of steel bars and concrete. The use of epoxy and hot dip galvanizing in Europe is extremely effective, and the cost of hot galvanizing is lower than that of epoxy resin. At present, hot-dip galvanized steel reinforcement is well used in Europe and its effectiveness is confirmed by users. Japan, Taiwan and other places are vigorously developing this research. The success of hot-dip galvanized steel bar will further promote the development of China's galvanized industry and zinc industry