![]() This implies that a wider use of prefabrication could considerably reduce construction waste generation in Hong Kong and alleviate the burdens associated with its management. ![]() The average wastage reduction level was about 52%. Just as you don’t paint a wall without cleaning it first, you don’t erect a building without properly preparing the ground. The results revealed that construction waste reduction is one of the major benefits when using prefabrication compared with conventional construction. Phase 1: Sitework The first step of any construction project is preparation of the site. A questionnaire survey was administered to experienced professionals, and case studies of recently completed building projects were conducted. This paper reports an ongoing study on the use of prefabrication in buildings and its impact on waste reduction in Hong Kong. The government is taking action to tackle the problem, such as by introducing a construction waste landfill charge, and promoting prefabrication to reduce on-site waste generation. At the present rate, Hong Kong will run out of both public filling areas and landfill space within the next decade. ![]() In 2005, about 21.5 million tonnes of construction waste were generated, of which 11% was disposed of in landfills and 89% in public filling areas. The construction industry produces a significant amount of building waste. As Hong Kong is a compact city with limited available land and high land prices, the construction of high-rise buildings is prevalent.
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