Speakers
Description
The selection of materials, design principles, construction methods, operational effectiveness, and end-of-life management are just a few of the many factors that need to be considered to conduct an efficient circularity assessment of new buildings. The absence of a consistent methodology encompassing all important requirements for materials and design currently poses a challenge for circularity assessment. Existing evaluation techniques have either focused on circularity in general or emphasized specific aspects like material circularity. Additionally, the lack of objective clarity in the variations of circularity indicators used for different lifecycle stages of buildings limits the ability to comprehensively evaluate their overall performance. For instance, relying solely on indicators to assess a building’s potential for disassembly can make it challenging to determine its total circularity. This is one of the main reasons why a qualitative approach is typically preferred. This study aims to address these gaps by conducting a state-of-the-art review focusing on the challenges associated with developing circularity assessment indices. Firstly, it presents a systematic literature review of the development and generation of common circularity indicators. Secondly, it discusses aggregation methods for these indicators, considering both qualitative and quantitative measures, with a specific emphasis on the identification and utilization of weights in the aggregation process. Lastly, the study highlights the state-of-the-art challenges in developing indices for assessing the circularity of buildings. The findings of this study serve as a comprehensive guide for tool developers and decision-makers in academia and the building sector. İt offers valuable insights into the underlying rationale behind circularity index generation and supports specific topics within the literature on the built environment.
| Keywords | Circularity assessment, Circularity indicators, Circularity index generation, Construction sector, Systematic literature review. |
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| Topics | Circular economy |
