Investigation on construction waste management at precast concrete plants in Johor: case study
Waste is becoming a major issue to manage with any significant growth. Despite the fact that there are a few existing studies in Malaysia that have developed waste management theories, existing waste management is given less attention in the manufacturing site. It is crucial to investigate the co...
| المؤلف الرئيسي: | |
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| التنسيق: | أطروحة |
| اللغة: | الإنجليزية الإنجليزية الإنجليزية |
| منشور في: |
2021
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://eprints.uthm.edu.my/6449/ |
| Abstract | Abstract here |
| الملخص: | Waste is becoming a major issue to manage with any significant growth. Despite the
fact that there are a few existing studies in Malaysia that have developed waste
management theories, existing waste management is given less attention in the
manufacturing site. It is crucial to investigate the construction waste handling
processes from generation to final disposal. Thus, the goals of this study are to identify
different types of construction waste, determine the causes of construction waste by
materials, and compare waste management practises in four precast concrete plants in
Johor, Malaysia. This study observed the manufacturing process of precast concrete
elements and interviewed manufacturer staff, including production managers and
engineers. According to the findings of this study, hard concrete, wet concrete, steel,
timber, and PVC are the most common types of construction waste found in precast
concrete plants. Meanwhile, leftover concrete from mixer trucks, items rejected by
inspectors, poor workmanship and mishandling by workers, machine breakdown,
weather effects, accidents, unstable staking positions, and cutting and bending
activities have all been identified as major sources of waste generation at the precast
plants studied. The waste generation rate in the prefabrication is around 2% by weight
or lower. It can be generally concluded that the overall waste generation of
prefabrication is found to be much lower than that ofconventional construction.
Finally, this study demonstrated how waste is managed in accordance with the material
designated for each plant visited. This study can provide valuable data on waste
management assessment in order to improve our understanding of construction waste
in the precast concrete manufacturing industry. |
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