Abstract
High construction waste (CW) generation in Malaysia has serious impacts although there are very little available data regarding the relevant issue in Malaysia. This lack of data results in improper CW management and CW disposal without proper control measures. To control the implications of CW, it is very important to understand their quantity which is currently unknown. Past researches in Malaysia, found that CW generation was affected by construction methods (CMs) practiced on site. The aim of this study is to compare the CW generation rate between different CMs for on-going construction projects in Malaysia. Common CMs practiced in Malaysia are conventional construction method (CCM), mixed construction method (MCM) and industrialized building system (IBS). To obtain CW generation data, site visit (SV) method, which consists of direct measurement (DM) and indirect measurement (IM) is applied to this study. CCM was recorded to have the highest amount of waste (197.657 tons). IBS method records 77.188 tons and MCM 53.191 tons. Regarding the average waste generation rate (AWGR), IBS recorded a value of 0.018 tons per square meter, while MCM recorded 0.030 tons per square meter and CCM recorded the highest amount of 0.046 tons per square meter.
Highlights
Construction sector has an important role in promoting economy growth in Malaysia [1]
This study aims to compare construction waste (CW) generation rates between different construction methods (CMs) for on-going construction projects in Malaysia
Obtained results were sorted according to the three CMs stated previously, namely conventional construction method (CCM), industrialized building system (IBS), and mixed construction method (MCM)
Summary
Construction sector has an important role in promoting economy growth in Malaysia [1]. Many infrastructure projects and buildings have been built [2] and CW in landfill results in a large burden and a costly issue for solid waste management [3]. Wastes have the potential to affect the human well-being and environment [4]. Despite the fact that this problem has caught the attention of the media for a long time, measures taken to control the waste generation are very few [5]. CW generation is affected by a few factors in the construction field, like improper management, low awareness, rules and regulations. The limited number of CW generation data attracts the attention of local researchers to explore this field
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