Preference based multi-criteria framework for developing a Sustainable Material Performance Index (SMPI)

Selection of materials for construction plays a vital role in achieving sustainable construction. As such there are trade-offs between multiple indicators in evaluating performance and selecting suitable sustainable material. In this study, based on principles and concepts of sustainability relevant to the construction industry, the indicators which significantly affects the material sustainability are examined through content analysis considering quadruple-bottom line approach (Social, Environmental, Economic and Technological criteria). These criteria and indicators are then utilized to assess the performance of materials in three phases of the material lifecycle: Pre-Construction, Construction, and Post-Construction, to provide a Sustainable Material Performance Index (SMPI). The objective of the study is to develop a conceptual decision-making framework for selecting a sustainable material without the need for Life Cycle Inventory (LCI) data. It is a simple and systematic framework system useful for building professionals to make critical decisions while choosing a sustainable material. The study extensively considered and illustrated the selection of alternative binder material for achieving sustainable concrete. The outcome of the study facilitates to make rational decisions and integrate them into the design process, standards, and product certification.