Causative factors of construction and demolition waste generation in Iraq Construction Industry
The construction industry has hurt the environment from the waste generated during construction activities. Thus, it calls for serious measures to determine the causative factors of construction waste generated. There are limited studies on factors causing construction, and demolition (C&D...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2021
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| Online Access: | http://eprints.uthm.edu.my/4004/1/24p%20MAYTHAM%20KADHIM%20OBAID.pdf http://eprints.uthm.edu.my/4004/2/MAYTHAM%20KADHIM%20OBAID%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/4004/3/MAYTHAM%20KADHIM%20OBAID%20WATERMARK.pdf |
| _version_ | 1796868939823710208 |
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| author | Obaid, Maytham Kadhim |
| author_facet | Obaid, Maytham Kadhim |
| author_sort | Obaid, Maytham Kadhim |
| collection | UTHM |
| description | The construction industry has hurt the environment from the waste generated during
construction activities. Thus, it calls for serious measures to determine the causative
factors of construction waste generated. There are limited studies on factors causing
construction, and demolition (C&D) waste generation, and these limited studies only
focused on the quantification of construction waste. This study took the opportunity to
identify the causative factors for the C&D waste generation and also to determine the
risk level of each causal factor, and the most important minimization methods to
avoiding generating waste. This study was carried out based on the quantitative
approach. A total of 39 factors that causes construction waste generation that has been
identified from the literature review were considered which were then clustered into 4
groups. Improved questionnaire surveys by 38 construction experts (consultants,
contractors and clients) during the pilot study. The actual survey was conducted with
a total of 380 questionnaires, received with a response rate of 83.3%. Data analysis
was performed using SPSS software. Ranking analysis using the mean score approach
found the five most significant causative factors which are poor site management, poor
planning, lack of experience, rework and poor controlling. The result also indicated
that the majority of the identified factors having a high-risk level, in addition, the better
minimization method is environmental awareness. A structural model was developed
based on the 4 groups of causative factors using the Partial Least Squared-Structural
Equation Modelling (PLS-SEM) technique. It was found that the model fits due to the
goodness of fit (GOF ≥ 0.36= 0.658, substantial). Based on the outcome of this study,
39 factors were relevant to the generation of construction and demolition waste in Iraq.
These groups of factors should be avoided during construction works to reduce the
waste generated. The findings of this study are helpful to authorities and stakeholders
in formulating laws and regulations. Furthermore, it provides opportunities for future
researchers to conduct additional research’s on the factors that contribute to
construction waste generation. |
| first_indexed | 2024-03-05T21:47:21Z |
| format | Thesis |
| id | uthm.eprints-4004 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English English English |
| last_indexed | 2024-03-05T21:47:21Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | uthm.eprints-40042022-02-03T02:19:41Z http://eprints.uthm.edu.my/4004/ Causative factors of construction and demolition waste generation in Iraq Construction Industry Obaid, Maytham Kadhim TH6014-6081 Environmental engineering of buildings. Sanitary engineering of buildings The construction industry has hurt the environment from the waste generated during construction activities. Thus, it calls for serious measures to determine the causative factors of construction waste generated. There are limited studies on factors causing construction, and demolition (C&D) waste generation, and these limited studies only focused on the quantification of construction waste. This study took the opportunity to identify the causative factors for the C&D waste generation and also to determine the risk level of each causal factor, and the most important minimization methods to avoiding generating waste. This study was carried out based on the quantitative approach. A total of 39 factors that causes construction waste generation that has been identified from the literature review were considered which were then clustered into 4 groups. Improved questionnaire surveys by 38 construction experts (consultants, contractors and clients) during the pilot study. The actual survey was conducted with a total of 380 questionnaires, received with a response rate of 83.3%. Data analysis was performed using SPSS software. Ranking analysis using the mean score approach found the five most significant causative factors which are poor site management, poor planning, lack of experience, rework and poor controlling. The result also indicated that the majority of the identified factors having a high-risk level, in addition, the better minimization method is environmental awareness. A structural model was developed based on the 4 groups of causative factors using the Partial Least Squared-Structural Equation Modelling (PLS-SEM) technique. It was found that the model fits due to the goodness of fit (GOF ≥ 0.36= 0.658, substantial). Based on the outcome of this study, 39 factors were relevant to the generation of construction and demolition waste in Iraq. These groups of factors should be avoided during construction works to reduce the waste generated. The findings of this study are helpful to authorities and stakeholders in formulating laws and regulations. Furthermore, it provides opportunities for future researchers to conduct additional research’s on the factors that contribute to construction waste generation. 2021-10 Thesis NonPeerReviewed text en http://eprints.uthm.edu.my/4004/1/24p%20MAYTHAM%20KADHIM%20OBAID.pdf text en http://eprints.uthm.edu.my/4004/2/MAYTHAM%20KADHIM%20OBAID%20COPYRIGHT%20DECLARATION.pdf text en http://eprints.uthm.edu.my/4004/3/MAYTHAM%20KADHIM%20OBAID%20WATERMARK.pdf Obaid, Maytham Kadhim (2021) Causative factors of construction and demolition waste generation in Iraq Construction Industry. Doctoral thesis, Universiti Tun Hussein Onn Malaysia. |
| spellingShingle | TH6014-6081 Environmental engineering of buildings. Sanitary engineering of buildings Obaid, Maytham Kadhim Causative factors of construction and demolition waste generation in Iraq Construction Industry |
| title | Causative factors of construction and demolition waste generation in Iraq Construction Industry |
| title_full | Causative factors of construction and demolition waste generation in Iraq Construction Industry |
| title_fullStr | Causative factors of construction and demolition waste generation in Iraq Construction Industry |
| title_full_unstemmed | Causative factors of construction and demolition waste generation in Iraq Construction Industry |
| title_short | Causative factors of construction and demolition waste generation in Iraq Construction Industry |
| title_sort | causative factors of construction and demolition waste generation in iraq construction industry |
| topic | TH6014-6081 Environmental engineering of buildings. Sanitary engineering of buildings |
| url | http://eprints.uthm.edu.my/4004/1/24p%20MAYTHAM%20KADHIM%20OBAID.pdf http://eprints.uthm.edu.my/4004/2/MAYTHAM%20KADHIM%20OBAID%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/4004/3/MAYTHAM%20KADHIM%20OBAID%20WATERMARK.pdf |
| work_keys_str_mv | AT obaidmaythamkadhim causativefactorsofconstructionanddemolitionwastegenerationiniraqconstructionindustry |