Client:
The Hong Kong Housing Department

Waste Minimisation Measures Highlights:

Planning for waste reduction

• Implement Waste Management Plan in demolition and civil engineering projects and plan to reduce the use of timber

Low waste building designs and technologies

• Design for balance cut and fill
• Design for dimensionally coordinated modular flats
• Use of precast facades, staircases and semi-precast floor slabs
• Use of prefabricated door-sets, metal security gates and cooking benches
• Use of prefabricated kitchen and bathroom cabinets
• Use of precast and prefabricated external works items such as planters and street furniture
• Use of pulverized fuel ash in cement
• Use of metal moulds for precast items
• Use of metal large panel formwork and steel table formwork
• Installation of panel walls in lieu of blockwork
• Offer different fitting out packages to meet purchaser's requirements

Waste management:

• On-site sorting of construction waste in demolition and civil engineering projects
• Reuse of construction waste such as metal panels, large timber panels and surplus steel bars
• Reuse of rubble and concrete as hardcore and back-filling material in situ
• Implementation of trip-ticket system to ensure proper waste disposal at public filling areas and landfills

Outcomes:

• Shorter construction period per floor
• Over 859,200 metric tonnes of timber saved since the use of metal moulds for metal hoardings, precast staircases and facades, and large panel steel formwork in the Housing Authority