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Construction Waste Quantification and Benchmarking： A Study in Klang Valley, Malaysia

Journal of chemistry and chemical Engineering 2011年第10期5卷 909-916页

作者： Ahmad Firman Masudi che rosmani che hassan Noor Zalina Mahmood Siti Nazziera Mokhtar NikMeriam Sulaiman Department of chemical Engineering Faculty of Engineering University of Malaya Kuala Lumpur 50603 Malaysia Institute of Biological Sciences Faculty of Science University of Malaya Kuala Lumpur 50603 Malaysia

Construction industry is a major contributor of negative impact to the environment. Estimation of construction waste amount is crucial for implementing waste minimization program. Estimation of construction waste amount generated is a mean in assessing the potential for waste reduction. Decision-making should be based on quantified measurements expressed in numerical terms to effectively minimize waste produced. A better understanding of C＆D waste generation in terms of causes and sources can be achieved. Lack of benchmarking will hinder the implementation of more sustainable practices in the industry. The aim of this paper is to establish benchmarks on construction waste generation rate in Klang Valley （greater Kuala Lumpur）, Malaysia using appropriate waste quantification method. Nine projects in Klang Valley constructed between 2006-2010 have been selected for this study, which include residential and commercial building projects conducted by a wide range of contractors employing conventional and IBS systems. Wastage level and waste index approaches had been employed in this study as tools for quantifying waste and also for environmental assessment. Types of waste that generated at significant amount, such as concrete, timber, reinforcement bars, tiles, screeds, and plaster are considered. Other factors, such as waste management provision, Environmental Management System （EMS） employed, record-keeping, contractors＇ profile and other related policies are also assessed by conducting interviews with construction personnel. Based on the findings, overall site-management, size of project, and awareness of waste management among construction personnel are the most significant factors that contribute to construction waste generation. Currently, there is still relatively lack of waste minimization awareness among construction players in Malaysia as reflected by poor waste record-keeping, lack of waste sorting and recycling practice, low usage of IBS systems, and lack of

关键词： Construction waste construction debris waste index wastage level waste quantification waste generation rate benchmarking Malaysia.

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