Smart construction: UHPC spraying technology enhances efficiency and durability of coastal structure repairs
Source：CCCCTime：2024-12-12
The technology has been successfully implemented on the Hangzhou Bay Bridge.
Ultra-high-performance concrete (UHPC) is a next-generation cement-based composite material known for its exceptional strength, ductility, durability, and workability. However, applying this innovative material to repair marine structures presents considerable technical challenges.
The independently developed UHPC spraying technology, pioneered by the technical center of CCCC's Second Harbor Engineering, has successfully addressed the complex demands of repairing reinforced concrete structures in tidal zones. This breakthrough significantly improves both the efficiency of coastal structure repairs and their service life.
The technology has been successfully implemented on the Hangzhou Bay Bridge. The bridge, a critical component of the newly constructed Nantong-Ningbo Railway, spans 29.2 kilometers. Designed with a double-track ballastless structure, it supports train speeds of up to 350 km/h.
Editor: Second Harbor Engineering
