Hong Kong-Zhuhai-Macau Bridge (HZMB) and Tunnel

Project description

The Hong Kong-Zhuhai-Macau Bridge (HZMB) and tunnel system is one of the world’s longest undersea vehicular tunnel and most challenging civil engineering projects.

HZMB is located over busy sea lanes and deep below the choppy estuarial waters of the Pearl River Delta. It links the Hong Kong Special Administrative Region (HKSAR), Zhuhai city of Guangdong province and the Macao Special Administrative Region.

The Promat team — comprised of personnel from Promat China and the Promat Asia Pacific Regional Tunnel Manager — have been working on the HZMB project for a number of years.

The designers chose the RABT curve up to maximum 1200°C. After the fire test it was determined that 25mm thick PROMATECT®-H was required to be fixed directly to concrete in accordance with the design and regulatory specifications.

Approximately 290,000m² of PROMATECT®-H and 8,000 tubes of 600ml PROMASEAL®-A Acrylic Sealant are employed in the HZMB tunnel making it one of the largest fire resistant board construction jobs for the tunnel segment business of Promat worldwide.

A substantial amount of PROMASEAL® FyreStrip is used to seal various movement joints within the concrete.