Comparative Study of CO2 Impact in Two Circular Concrete Construction Approaches
Peng Lee (TU Delft - Architecture and the Built Environment)
Atousa Aslaminezhad (Heriot-Watt University Dubai Campus, Universiteit Antwerpen)
Henriette Bier (University of Sydney, TU Delft - Architecture and the Built Environment)
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Abstract
This paper presents a comparative study on environmental impacts in terms of carbon dioxide (CO2) emission from circular concrete construction. From full preservation to demolition, buildings are retained, components are reutilized, and materials are reprocessed into new products. However, doing so often requires new material, equipment deployment, and energy consumption. Hence, the presented research evaluates CO2 emissions related to these various circular approaches to identify the lowest CO2 strategy for decarbonization. By comparing building components such as columns constructed by different circular means, in this case, reutilization and reprocessing, the study investigates the energy and materials at the component scale, which informs the redeployment of multi-lifecycle building construction.
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