Steel structure faces anti-corrosion problems in bridge construction

With the development of social economy, China's transportation industry continues to progress, and bridge construction is an important part of the transportation industry. In the construction of bridge construction, steel structure actively exerts its advantages in bridge design and application. It has the advantages of high strength, convenient installation, short construction time, and strong load capacity. It has been widely used in railways, highways, and road-rail dual-use bridges. And pedestrian bridges.

However, the steel structure in the atmospheric environment is affected by sunlight, sand, rain, snow, frost, and changes in temperature and humidity throughout the year, and its anti-corrosion problem has attracted much attention. Especially in coastal areas where there are long-term cold and hot, dry and wet alternates, the corrosion of steel is accelerated and the service life of bridges is shortened. Therefore, it is particularly important to design a long-term corrosion protection and environmental protection program for steel structures.

Cold-sprayed zinc realizes high-efficiency anti-corrosion in steel structure

At present, ZINDN Technology provides a safer, more environmentally friendly, and longer anti-corrosion solution-cold spray zinc anti-corrosion coating system.

Cold spray zinc is a new type of coating for cathodic protection by galvanizing the surface of steel. It uses the electrochemical corrosion of zinc powder to act as a cathodic protection for the steel to prevent corrosion. The coating has a zinc content of 96%, no heavy metal components such as lead and cadmium, low VOC, and simple construction and operation at room temperature. It can achieve 25 years of maintenance-free, and the life-span anti-corrosion investment can be reduced by 67%. The excellent anti-corrosion and anti-rust effect of cold spray zinc solves the problems of traditional anti-corrosion processes such as hot spray new and arc spray zinc (aluminum).

ZINDN cold spray zinc VS hot zinc spray VS arc spray zinc (aluminum)

Performance comparison photos

The cold spray zinc construction ensures that there is no high temperature oxidation of the dipped zinc, the cathodic protection ability is stronger, and the special dense barrier protection double effect, the protection ability is stronger, the performance is better than the hot galvanizing, and it can be widely used in elevators, power towers, Long-term anti-corrosion use in tunnels, bridges, storage tanks, pipeline equipment, rail transit and other metal steel structures.

ZINDN Cold Spray Zinc Protection New Era "Chinese Bridge"

（▲ZINDN cold spray zinc bridge steel structure anti-corrosion application case）