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Reducing embodied carbon in concrete materials: A state-of-the-art review
Resources, Conservation and Recycling ( IF 13.2 ) Pub Date : 2022-09-18 , DOI: 10.1016/j.resconrec.2022.106653
Siwei Chen, Yue Teng, Yang Zhang, Christopher K.Y. Leung, Wei Pan

The construction sector is responsible for about 40% of energy-related emissions worldwide. Utilizing low-carbon concrete materials (LCCMs) has been recognized as an efficient way to reduce embodied carbon (EC). However, there is a lack of systematic understanding and a unified comparison of the LCCMs’ EC reduction potentials. This paper identifies publications related to LCCMs and conducts a content analysis in three dialectical dimensions. Identified LCCMs were categorized into four divisions. The results show that the most prospective LCCMs are low-carbon cementitious binders, achieving 52.6% EC reductions. The results also demonstrate the significance of comparing the EC reduction potentials of different LCCMs at a unified level, as up to 11% inconsistency was identified when switching between cement & concrete level and components & building level. It provides a theoretical foundation for researchers and practitioners to examine possible LCCMs. The findings reveal new directions for achieving a more reliable cross-case comparison among the EC reduction potentials of different LCCMs.



中文翻译:

减少混凝土材料中的隐含碳:最新评论

建筑业产生了全球约 40% 的能源相关排放。利用低碳混凝土材料 (LCCM) 已被认为是减少隐含碳 (EC) 的有效方法。然而,缺乏对LCCM的EC还原潜力的系统理解和统一比较。本文确定了与LCCM相关的出版物,并从三个辩证维度进行了内容分析。已识别的 LCCM 分为四个部分。结果表明,最具前景的 LCCM 是低碳水泥粘合剂,可实现 52.6% 的 EC 降低。结果还证明了在统一水平上比较不同 LCCM 的 EC 还原电位的重要性,因为在水泥和混凝土水平以及组件和组件之间切换时发现高达 11% 的不一致。建筑水平。它为研究人员和从业人员检查可能的 LCCM 提供了理论基础。研究结果揭示了在不同 LCCM 的 EC 还原电位之间实现更可靠的跨案例比较的新方向。

更新日期:2022-09-18
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