1. Painting of Nanjing Yangtze River Bridge
The paint coating system currently used on the Nanjing Yangtze River Bridge is the first system listed in Table 2, which consists of two red phenolic primers and three layers of iron-alkyd topcoat. This system requires maintenance every 7 to 8 years, typically involving a new topcoat application to ensure durability and protection against corrosion.
2. Painting of Wuhu Yangtze River Bridge
Built in 1998, the Wuhu Yangtze River Bridge uses the fifth coating system from Table 2, featuring two epoxy zinc-rich primers, one layer of iron-epoxy intermediate coat, and two layers of gray aluminum powder alkyd topcoat. This system provides longer-lasting protection, requiring maintenance approximately every 12 to 15 years.
3. Anti-Corrosion Coating of Steel Beams on Wanzhou Yangtze River Bridge
The Wanzhou Yangtze River Bridge, a key project of the Wanwanyi Railway located in Chongqing’s Wanzhou area, faces severe corrosion conditions. The coating system being used includes two layers of epoxy zinc-rich primer, one layer of cloud-iron epoxy intermediate paint, and two layers of fluorocarbon topcoat. This advanced system is expected to last more than 30 years, offering superior protection for the steel structures in harsh environments.
As infrastructure projects continue to grow across China, the use of high-performance coatings becomes increasingly important. These systems not only protect critical structures like bridges but also reduce long-term maintenance costs and extend service life. Engineers and contractors are constantly evaluating and improving coating technologies to meet the challenges of environmental exposure and structural demands. Whether it's the iconic Nanjing Bridge or the newly constructed Wanzhou Bridge, the choice of the right paint system plays a vital role in ensuring safety, durability, and aesthetics.
Main Purpose
It can be used in large quantities as a raw material for the production of various products such as melamine, Maixing Shuku, Hydrated Fat, Tetracycline, Phenobarbital, Caffeine, Reduced Brown BR, Phthalocyanine Blue B, Phthalocyanine Blue BX, Monosodium Glutamate, etc.
Due to its excellent solubility in dyes, mild reducibility, oxidation resistance, and extremely excellent moisture absorption, urea is an excellent dye solvent, moisture absorbent, viscose fiber puffing agent, and resin finishing agent in the textile industry, with a wide range of applications.
Industrial Crystalline Urea,Cosolvent Urea,Industrial Cosolvent Urea
Linyi Lanshan Weipu Rubber Factory , https://www.weipuwood.com