Developing a circular supply chain maturity model for the biotransformation of the construction industry

Date

2025-8-25

Author

Bostancı, Hafize Büşra

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The circular economy concept, begun to dominate industries and governments in search for solutions to the global climate crisis and resource scarcity, offers different approaches for the long-term use of resources within the system. However, maintaining current system is insufficient to tackle the effects of climate crisis. Therefore, developing a regenerative system, focusing on environment and socio-economic well-being, and implementing a new transformation model for a circular bioeconomy are essential for health of the planet and people. Promoting use of bio-based materials that capture carbon and providing healthier alternatives to traditional materials will lessen environmental pressures and improve the unbalanced economy by supporting local communities, thereby strengthening socio-economic development. A successful transformation in the construction industry requires improving capabilities and collaboration of diverse stakeholders within the construction supply chain and enhancing synergy between materials, buildings, and cities. Hence, this study proposes a biotransformation-oriented construction supply chain maturity model to identify and evaluate the maturity of stakeholders within supply chain, thereby improving biotransformation capabilities. The proposed product, process, and people-focused model enables envisagement of traceable and improvable decision-making process from material extraction to end-of-life. Considering the model, a decision-support tool was developed to improve the decision-making processes of stakeholders. The developed tool was tested through a case study. Key factors were presented to stakeholders to assess their current maturity and identify areas for improvement, and the tool’s applicability and usability were evaluated with participants. Furthermore, by survey data, a matrix was developed using the MAVT method to determine stakeholder impact and factor importance. This dataset was used to interrogate whether an alternative ANN prediction model could be used. However, ANN model performed poorly due to insufficient data. As ANN model only offers predictive capabilities, as opposed to the developed decision-support tool, it fails to meet main objective of research. Furthermore, using decision-support tool will guide stakeholders about their biotransformation maturity, thus laying the foundation for a more collaborative ecosystem and promoting a regenerative approach for a more resilient construction industry.

Subject Keywords

Circular bioeconomy, Regenerative construction, Construction supply chain, Capability maturity model, Decision-support tool

URI

https://hdl.handle.net/11511/116063

Collections

Graduate School of Natural and Applied Sciences, Thesis