04124nam a22002777a 4500 260505t2025 bx da||g m||| 00| 0 eng d Universiti Teknologi Brunei eng UTB UTB 120 REPORT THESIS & DISSERTATION RTDS 451 Nurul Ahsha Binti Haji Roslan author. Revamping End-of Life Waste Management in Buildings / Nurul Ahsha Binti Haji Roslan Bandar Seri Begawan: Universiti Teknologi Brunei, 2025. xii, 199 pages : Color illustration ; 30 cm Dissertation Submitted in Fulfilment of the Requirements for the Degree of Master in Science ABSTRACT Waste generated from demolition of buildings at their end-of-life (BOL) stage forms the highest volume in construction. Most of such wastes are thrown away, although they contain higher share of recoverable materials and components, and contribute to environmental degradation, economic loss and resource depletion. This can be significantly saved by deploying the principles of Circular Economy (CE), through using building information modelling (BIM) and extensively practicing alternate/modern methods of construction (MMC). However, country specific design and waste management practices should be identified and included in a regulatory framework, along with their barriers and relevant strategies. This study was approached through the multiple methods of structured literature review, a questionnaire survey, and a mini validation survey. The literature review offered insights and inter-relatedness between CE and MMC in reducing EOL waste, and how BIM can assist in their practice. The questionnaire survey assessed industry awareness on the conceptualization, identified underlying issues and prioritized various strategies/methods of CE underpinned BIM-based MMC practices. Overall, the findings revealed that although construction stakeholders are generally aware of EOL waste management, the lack of education and training is perceived as a major factor hindering its effective implementation. Stakeholders noted that BIM, particularly its cost-benefit analysis feature, can play a crucial role in helping companies make informed decisions and reduce long-term costs, thereby supporting EOL waste practices. Consequently, the most strategic course of action is to implement clear guidelines for the use of recycled or recovered construction materials, along with strengthened government support. A framework was formulated based on these survey outcomes, which was refined, further developed and validated through the interview-based mini validation survey. This framework presents the existing waste management practices, highlighting the generation and flow of waste from the initial extraction of raw materials to the final disposal. For the proposed EOL waste management, the framework then emphasizes on the design phase, particularly through the integration of various CE underpinned BIM-based MMC techniques, and the EOL phase to promote CE underpinned conservation efforts namely reduce, reuse, and recycle. It also clarifies how recovered materials can be effectively repurposed in new construction, eventually contributing to more efficient and environmentally friendly practices in the industry. As such, this framework will further empower regulators to establish effective policies while providing implementers with a clear roadmap for adopting CE-supported EOL waste management practices. Dissertation (Master of Science) - Universiti Teknologi Brunei Include bibliographical references Thesis Universiti Teknologi Brunei Final Year Report Universiti Teknologi Brunei Construction and Demolition debris Brunei Darussalam Circular Economy Brunei Darussalam Buildings Brunei Darussalam Dr Supervisor Mohd Motiar Rahman Dr Supervisor Ismawi Yusof lc 0 RTDS Report, Thesis & Dissertation 860669 : 002504 c.1_UTB Universiti Teknologi Brunei 24061 24061 0 0 lc 0 0 UTB UTB Level 2 2025-11-04 0 850669 2026-05-05 0000-00-00 RTDS Reg.No.002504_UTB [RTDS 451]