كنفرانس بين المللی مهندسی صنايع و سيستم ها

صفحه اصلی / دوازدهمین كنفرانس بين المللی مهندسی صنايع و سيستم ها

Identifying Processes and Sub-processes of the Circular Economy in the Construction Industry: A Meta-Synthesis

نویسندگان :

Mohammad Reza Sadeghi Moghadam¹ Ayda Gholidokh² Rohollah Ghasemi³

1- دانشگاه تهران 2- دانشگاه تهران 3- دانشگاه تهران

کلمات کلیدی :

Circular Economy،Construction Industry،9R Framework،Meta Synthesis،Process Management،Sustainable Construction

چکیده :

The construction industry, responsible for roughly 50% of global resource consumption and 35% of greenhouse gas emissions, remains largely locked into a linear “take make dispose” model. Although the circular economy (CE) offers a transformative alternative, the systematic identification and categorisation of its operational processes and sub processes in construction is still lacking. This study addresses that gap through a meta synthesis of 36 high quality peer reviewed articles (2020-2026) from Scopus and Web of Science. Following Sandelowski and Barroso’s seven step protocol, 51 open codes (sub processes) were extracted and organised under ten axial codes (main processes) aligned with the 9R framework (R0-R9). The results show that higher order strategies (Refuse, Rethink, Reduce) are predominantly addressed in design and planning, whereas middle order strategies (Reuse, Repair, Refurbish, Remanufacture, Repurpose) focus on extending building lifespans, and lower order strategies (Recycle, Recover) address end of life material and energy recovery. The proposed framework provides practitioners with a concrete, process level blueprint for CE implementation and highlights that energy recovery (R9) remains the least addressed strategy. This integrative taxonomy bridges conceptual CE principles and actionable construction practice, supporting project managers and policymakers in prioritising circular interventions across the entire building lifecycle.