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Ali, A (2018) Development of a framework for sustainable construction waste management: a case study of three major Libyan cities, Unpublished PhD Thesis, School of Architecture and Built Environment, University of Wolverhampton.
- Type: Thesis
- Keywords: demolition; focus group; Libya; questionnaire survey; sustainability; waste management
- URL: http://hdl.handle.net/2436/622080
Construction and Demolition (C&D) waste is one of the most voluminous and harmful categories of solid waste worldwide, comprising 40% of the total volume of global waste. Waste minimisation is essential for sustainable waste management for environmental, social and economic benefits. Libya has particularly egregious C&D waste due to prolific and unregulated construction activities and conflict, and defective C&D waste management. This study presents a framework for sustainable construction and demolition waste management (SC&DWM) in the Libyan context. A critical analysis of different barriers affecting SC&DWM and strategies to overcome them are presented based on a combination of literature review and mixed methods research. During the first phase, questionnaires were distributed face-to-face to four different groups: the general public, two groups of experts and policy maker. The second phase involved a focus group discussion (FGD) to produce additional beneficial supporting data, particularly from experts, in order to strengthen the outcomes of the study. Data analysis revealed that the main barrier to SC&DWM in Libya is the lack of C&D waste management facilities, while the least important barrier was producing unrecyclable materials from construction activities. The key strategy for SC&DWM is increasing awareness of negative impacts of C&D waste and the positive influence of sustainable practices for organizational and national economics. The developed framework presents a coherent and systematic approach and identified strategies that could be used to address these barriers and lead to SC&DWM, including options available for SC&DWM, capacity building, implementation and enforcement and evaluation and reviewing. The practical implication of the findings is that Libyan central government, municipalities and organizations need clear vision, approaches and practices to achieve SC&DWM. To validate this research findings, internal and external sources were adopted. In addition, respondent validation technique was used to evaluate the framework. Respondents believed that this framework tailored to the Libyan circumstances and the framework is appropriate enough to obtain SC&DWM practices in the case study. The study also provides a range of targeted recommendations for SC&DWM in Libya to improve efficiency. Further work is necessary to implement construction waste management and waste management at the industrial level, as well as identifying the actual quantity C&D waste so far, and its composition and distribution in Libya.