Application of Stainless Steel Reinforcements in the Hong Kong-Zhuhai-Macao Bridge

The use of stainless steel reinforcements (SSRs) is an effective measure to guarantee the durability of concrete structures in the marine environment. SSRs have been used overseas for many years, whereas the under-construction Hong Kong-Zhuhai-Macao Bridge (HZMB) is the first project using SSRs in the mainland of China. 2304 SSRs have been used as an external anti-corrosion measure for the bridge concrete, and are used only in the severe corrosive area and replace only the outermost layer of carbon steel reinforcements (CSRs) in consideration of cost.