Arumugam, Niwasiny (2023) Modelling a mishandling material occurrence of construction waste at Klang Valley’s Construction Projects. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Construction waste generation is one of the main issues that results from rapid development in Malaysian construction industry. To reduce the waste produced by construction projects, it is important to rectify the causes of construction waste generation. According to previous studies, mishandling of construction materials has been one of the key factors that lead to construction waste generation. Therefore, this research aims to develop a structural relationship model of mishandling material in Malaysian construction industry. The quantitative approach, through a structured questionnaire survey is used to verify the root causes of mishandling material to determine the mishandling material occurrence. A total of 218 valid questionnaire responses were accounted and found 36 root causes of mishandling materials in total. Next, the root causes have been grouped using factor analysis which resulted to 5 groups of root causes namely Material and Procurement, On-Site Operation, Site Management and Practices, Human Resource, and Transportation. Then, the structural model of mishandling material was established using the multivariate approach of Partial Least Square-Structural Equation Modelling (PLS-SEM). The model indicates that Human Resource Group has the highest impact on the mishandling material occurrence with a path coefficient value of 0.226. The findings revealed the top three root causes of mishandling materials which are ‘Unnecessary material handling on site’, ‘Carelessness of workers, and followed by ‘High usage of manual labour in material handling’. In addition, the model was validated by construction experts where’s 92% of them agreed with the findings. Thus, the model has the potential to educate construction practitioners to minimize the mishandling of material in order to reduce waste generation by focusing on the established root causes to solve the particular issue in the construction industry

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