3DCP-CI: Developing a Circularity Indicator for Assessing 3D Concrete Printed Architectural Designs
DOI:
https://doi.org/10.55845/jos-2025-1255Keywords:
Circular Design, Circularity Indicator, 3D Concrete Printing, CircularityAbstract
3D Concrete Printing (3DCP) is considered a promising technology for circularity and sustainability in construction through material-efficient designs and processes. While life cycle analysis has been applied to 3DCP materials and processes to test this view, circularity assessments covering the full life cycle of 3DCP designs remain understudied. Existing assessment methods are not designed for, and are difficult to apply within, the 3DCP context. To address this gap, this article introduces 3DCP-CI, a framework developed to systematically assess the circularity potential of 3DCP designs. Existing circularity indicators and their assessment methods were reviewed and synthesised to create 3DCP-CI. Four key performance indicators were identified for 3DCP: adaptability, disassemblability, reusability, and recyclability. Using 3DCP-CI, the Project Milestone was evaluated to improve, validate, and demonstrate the framework’s applicability. The assessment of the Project Milestone indicated that while the separation of building layers and the use of reversible connections significantly influence the final score, the use of non-virgin materials improves the circularity score noticeably. The framework aims to encourage designers to make more circular decisions when applying 3DCP. Furthermore, areas in which the research or practice of circular 3DCP applications can be advanced are expected to emerge through the use of 3DCP-CI.
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Copyright (c) 2025 Idil Gumruk, Torsten W. A. Schroeder, Rob J.M. Wolfs, Theo A.M. Salet
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Accepted 10-11-2025
Published 22-11-2025
