Journal
JOURNAL OF INDUSTRIAL ECOLOGY
Volume 25, Issue 2, Pages 377-389Publisher
WILEY
DOI: 10.1111/jiec.13105
Keywords
cement; circular economy; decarbonization; emission reduction; industrial ecology; policy analysis
Categories
Funding
- Engineering and Physical Sciences Research Council of the U.K. [EP/S006079/1, EP/S006079/2]
- Imperial College London
- EPSRC [EP/R010161/1]
- UKCRIC Coordination Node, EPSRC [EP/R017727/1]
- EPSRC [EP/S006079/2, EP/R010161/1, EP/S006079/1] Funding Source: UKRI
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This paper reviews measures to achieve net-zero greenhouse gas emissions in the cementitious materials cycle, finding significant decarbonization potential along the cycle, but also highlighting areas where further research is needed.
This paper presents a semi-quantitative review of measures to achieve net-zero greenhouse gas emissions (decarbonization) in the cementitious materials (CMs) cycle, that is, activities directly related to cement spanning extraction through to end of life. It focuses on the United Kingdom and Europe in order to relate these measures, comprising emissions, energy, and material efficiency, to the policy landscape. We summarize our findings in an annotated CMs cycle, produced by reconciling the diverse yet relatively underdeveloped literature on the topic, to quantify decarbonization potentials of the various measures in a systematic manner. We find that decarbonization measures with significant potential exist along the entire CMs cycle, although upstream (of use), energy, and emission efficiency measures are better quantified than downstream (of use) and material efficiency measures. Notably, the decarbonization potentials of recycling technologies and the ways in which technological advancements may transform the CMs cycle and thus the stocks, flows, and processing of materials, as well as effectiveness of decarbonization measures, are poorly understood. Therefore, this paper provides a basis to systematically understand the effects of emissions, energy, and material efficiency measures on decarbonization of the CMs cycle and, in this context, the interplay between technology, economic actors, and policy. This article met the requirements for a gold-gold JIE data openness badge described at http://jie.click/badges.
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