• Quieter Construction Methods
    Quieter Construction Methods

Some advanced quieter construction methods have been established. Performance and practicability of the equipment has been studied and approved on different construction sites in Hong Kong.


Cured-In-Place-Pipe (CIPP) Lining


Conventional pipe repairing and replacement may need to open the road surface. Cured-In-Place Pipe (CIPP) Lining is considered to be one of the quieter construction methods, compared to the traditional "open, cut and replace" method. Firstly, the deflated soft liner fabric material is pulled into the host pipe by a winch. Then, the liner is inflated by compressed air such that it can stay tight-fit with the host pipe. Finally, the liner is then cured by steam. Until the liner cools down, it hardens.