Hong Kong Zhuhai Macao Bridge (Hong Kong connection section)-Chengdu DongLanxing Technology Development Co., Ltd.

Hong Kong Zhuhai Macao Bridge (Hong Kong connection section)

Release time：2021-11-02 Reading volume： Author：Chengdu DongLanxing Technology Development Co., Ltd.

Project background: the Hong Kong Zhuhai Macao Bridge is a bridge and tunnel project connecting Hong Kong, Zhuhai, Guangdong and Macao in China. It is located in the Lingdingyang sea area of the Pearl River Estuary in Guangdong Province, China. It is the south ring section of the ring expressway in the Pearl River Delta. The Hong Kong Zhuhai Macao Bridge is famous for its super large construction scale, construction difficulty and professional construction technology.

The Hong Kong Zhuhai Macao Bridge starts from the Hong Kong port artificial island near the Hong Kong Airport in the East, crosses the Lingdingyang waters of the South China Sea in the west, connects Zhuhai and Macao artificial islands, and ends at Zhuhai Hongwan interchange; The total length of the bridge and tunnel is 55 kilometers, including 29.6 kilometers of the main bridge and 41.6 kilometers from Hong Kong port to Zhuhai Macao port; The bridge deck is a two-way six lane Expressway with a design speed of 100 km / h; The total investment of the project is 126.9 billion yuan.

Solution: in 2013, East Bluestar was successfully shortlisted for the Hong Kong Zhuhai Macao Bridge project to supply 38000 tons of excellent silica fume for the Hong Kong connection section of the Hong Kong Zhuhai Macao Bridge. As a sea crossing project, the Hong Kong Zhuhai Macao Bridge is in service in a complex marine environment. The total amount of concrete with different strength grades used for various components is more than 3 million cubic meters. Adding silica fume into concrete can improve the impermeability of concrete and reduce the corrosion of chloride ions in seawater to reinforced concrete, which is of great significance to prolong the service life of the project.

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