Sustainable building materials: a critical literature review and comparative analysis of relative weights in MCDM-based sustainable materials selection criteria frameworks
摘要
The selection of sustainable materials is a crucial strategy in building design, vital for enhancing environmental, economic, social, and technical performance. While numerous frameworks exist for sustainable building material (SBM) selection globally, a critical gap persists in the comprehensive and systematic analysis of their common characteristics based on the relative priorities assigned to various sustainability criteria within Multi-Criteria Decision-Making (MCDM) methodologies. This study addresses this gap by conducting a systematic comparative review of fifteen carefully selected research studies that utilize MCDM for SBM selection. Its primary objective is to conduct a critical assessment and quantitative comparative analysis of the Relative Weights (RW) attributed to environmental, economic, social, and technical sustainability criteria, thereby providing a nuanced understanding of their current distribution and importance in literature. The review identified and classified key main and sub-criteria frameworks used in SBM selection. A comparative analysis of the aggregated criteria weights revealed a prioritization of environmental criteria (36.4%), followed by technical (25.5%), economic (21.6%), and social (16.5%) criteria. Specifically, "minimizing environmental impacts" ranked highest within the environmental category, "constructability" in the technical, "initial cost" in the economic, and "social identity" in the social. This study highlights a consistent trend in existing frameworks towards prioritizing environmental impact reduction, while underscoring the comparatively lower, yet crucial, importance given to technical, economic, and social attributes. These insights are vital for refining current practices and fostering theoretical advancements in SBM selection. Future research should focus on further empirical studies on multi-criteria selection and incorporating end-user feedback to better align criteria weights with real-world sustainability implementation in construction.