Journal Articles

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    Material selection in the construction industry: a systematic literature review on multi-criteria decision making
    (Springer Nature, 2025-01-21) Bajwa AUR; Siriwardana C; Shahzad W; Naeem MA
    Material choice is critical for ensuring sustainability in the construction industry. Higher carbon embodiment materials contribute towards greenhouse gas emissions and global warming. Decisions on sustainable material selection depend on multiple criteria and variables, thus creating a difficulty to determine the best choice. Multi-Criteria Decision Making (MCDM) techniques have the potential to address this challenge. However, there is limited data that reviews MCDM in choosing building and construction materials. This study aims to review the MCDM methods employed in the sustainable selection of building materials within the construction industry. This systematic literature review (SLR) incorporates meta-analysis and thematic mapping through applying “PRISMA framework” and “Bibliometrix”, respectively. This study explored and analysed the records published from 2010 to 2023. This work identified the critical steps for addressing decision problems in building material selection: Establishing criteria, ranking the hierarchy, comparing the selection criteria, and enabling consistency indices. Moreover, one of the most used MCDM methods, i.e. Analytical Hierarchy Process (AHP) was particularly found particularly useful for the selection criteria and weight assignment of variables regarding the waste, recycled, and composite materials. The involvement of several criteria and alternatives raised the complexity of decision problems, leading to the use of Hybrid MCDM. Hybrid MCDM techniques possess the capacity guide informed decisions for the sustainable material selection in the construction industry.
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    Enhancing building material circularity: A systematic review on prerequisites, obstacles and the critical role of data traceability
    (Elsevier B.V., 2024-10-29) Ranasinghe N; Domingo N; Kahandawa R
    The construction industry significantly consumes natural resources and generates substantial waste due to linear supply chain practices. Circular economy strategies are essential for extending material lifespans and promoting regeneration. Material reclamation is a central strategy for implementing circularity, yet its practical application remains limited. The purpose of this research is to identify the factors hindering building material circularity and propose measures to overcome them. This paper aims to explore the prerequisites and obstacles to material reclamation in the construction industry to foster its transition into a circular economy. A systematic literature review of 74 papers was conducted using data from Scopus, Google Scholar, IEEE Xplore, and Web of Science, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The review identified eight key themes related to achieving material circularity, with design, informational, and technological factors receiving top priority in researchers’ focus. Data availability emerged as a critical prerequisite, while the primary obstacle is the lack of data traceability throughout the building materials' lifecycle. This study concludes that digitalizing the material supply chain can address data unavailability and most of the identified obstacles. Ultimately, comprehensive material data will support the stakeholders in making solid circular decisions. This research provides guidance to construction industry stakeholders to overcome recognised obstacles and promote essential prerequisites of material circularity where no such information currently exists, to facilitate the transition to a circular construction industry.