From circularity to sustainability: Advancing the whole building circularity indicator with Life Cycle Assessment (WBCI-LCA)

作者：Nouman Khadim, Rosa Agliata, Qi Han, Luigi Mollo · 发表于：Building and Environment · 年份：2024 · DOI：10.1016/j.buildenv.2024.112413 · 被引用次数：43 · 研究领域：Sustainable Building Design and Assessment、Environmental Impact and Sustainability、Sustainable Supply Chain Management

• Developed a unified WBCI-LCA framework for circularity and environmental assessment • Demonstrated framework using Dutch residential building with four circular scenarios • Higher circularity does not always improve environmental performance • Biobased material like CLT and wood reduce GWP by 46% but increase EP • Highlighted the critical role of EoL scenarios in sustainability and circularity outcomes Circular construction is an emerging paradigm aimed at minimizing waste and reducing environmental impacts associated with the construction industry. To support this transition, building circularity indicators have been developed to assess the circularity of construction. While these indicators provide valuable insights into circularity, they lack the capacity to evaluate the environmental impacts of circular interventions. Addressing this gap, this paper presents a novel integration of the Whole Building Circularity Indicator (WBCI) with a comprehensive Cradle-to-Cradle Life Cycle Assessment (C2C-LCA), creating a unified WBCI-LCA framework for assessing circularity and Environmental Sustainability (ES) in circular construction. Applying the framework to a typical Dutch residential building and developing four circular scenarios, this study demonstrates how WBCI and C2C-LCA approaches can be effectively combined to examine the complex trade-offs between circularity and ES. The findings reveal that while increased circularity (from 0.309 to 0.488 in developed scenarios) reduce...