A whole life cycle performance-based ECOnomic and ECOlogical assessment framework (ECO2) for concrete sustainability

Concrete is the primary building material worldwide with a substantial impact on the built environment sustainability. Hence, it is necessary to assess concrete’s combined functionality, economic and environmental impact. In this paper, two concrete sustainability assessment frameworks, MARS-SC and...

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Veröffentlicht in:Journal of cleaner production 2021-04, Vol.292, p.126060, Article 126060
Hauptverfasser: Hafez, Hisham, Kurda, Rawaz, Al-Ayish, Nadia, Garcia-Segura, Tatiana, Cheung, Wai Ming, Nagaratnam, Brabha
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Sprache:eng
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Zusammenfassung:Concrete is the primary building material worldwide with a substantial impact on the built environment sustainability. Hence, it is necessary to assess concrete’s combined functionality, economic and environmental impact. In this paper, two concrete sustainability assessment frameworks, MARS-SC and CONCRETop, were studied. Building on the identified gaps, a new framework, ECO2 was developed. ECO2 is a multi-criteria decision analysis framework that accounts for carbon sequestration of concrete, impact allocation of raw materials, and the impact from the use and end-of-life phases. Hence, it could be used to optimize the proportions of a concrete mix based on a user-defined sustainability objective. A case study concluded that, due to the whole life cycle scope, the environmental impact calculated through ECO2 is 20% higher than that by MARS-SC and CONCRETop. In case of reinforced concrete, where service life requirements are different, the ranking of the alternatives according to ECO2 will significantly change comparatively.
ISSN:0959-6526
1879-1786
1879-1786
DOI:10.1016/j.jclepro.2021.126060