Circular Economy Within the Built Environment: Clustering the Strategies for New Buildings and Existing Building Stock
摘要
The increase in construction and demolition activities causes adverse environmental problems due to a decrease in natural resources and rapid growth in waste generation. Increment in these problems has encouraged researchers, producers, and policymakers to develop and apply innovative and sustainable solutions. This pursuit has led to the implementation of resource-efficient, zero-emission, and carbon-neutral strategies adopted by many industries. Within the last decade, the circular economy (CE) concept has gained importance as a sustainable innovative paradigm due to enabling resource conservation and sustainable waste management. After the European Commission (EC) released its first CE action plan in 2015, the transition to CE has started to be on the agenda of many industries, and the industries have focused on adapting this concept to their economic processes by setting up CE strategies. Furthermore, the circular economy (CE) concept has gained momentum as a new economic paradigm and become popular in the architecture, engineering, and construction (AEC) industry with its strategies applied from design and construction to deconstruction and end-of-life (EoL). Although there is a growing interest in exploring and implementing CE strategies, the articles pointing to specific CE strategies in the construction industry are still underexplored. Within this framework, this study aims to interrogate the various CE strategies related to the construction industry discussed in the literature. It evaluates the CE strategies obtained through a systematic literature review by clustering them for new buildings/existing building stock and meso/macro scale. Finally, the key strategies regarding the construction industry are listed and classified as design-construction-operation-refurbish-End-of-Life strategies for future studies. It is anticipated that CE strategies, both enhancing new kinds of designs for new buildings and evaluating material potentials of existing buildings, will enable minimizing construction-based environmental damage and encourage more sustainable construction.