Durability performance of concrete incorporating carbonated recycled coarse aggregates: a review

Abstract Carbonation of recycled coarse aggregates (RAs) has drawn significant attention in recent years. This study shows that most durability indicators of carbonated RAs concrete (cRAC) are lower than natural aggregate concrete, while compared to concrete with non-carbonated RAs, all durability i...

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Main Authors: Zhidong Zhang, Ueli Angst, Viacheslav Troian, Bingbing Guo, Qiang Zeng
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:npj Materials Sustainability
Online Access:https://doi.org/10.1038/s44296-025-00071-x
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author Zhidong Zhang
Ueli Angst
Viacheslav Troian
Bingbing Guo
Qiang Zeng
author_facet Zhidong Zhang
Ueli Angst
Viacheslav Troian
Bingbing Guo
Qiang Zeng
author_sort Zhidong Zhang
collection DOAJ
description Abstract Carbonation of recycled coarse aggregates (RAs) has drawn significant attention in recent years. This study shows that most durability indicators of carbonated RAs concrete (cRAC) are lower than natural aggregate concrete, while compared to concrete with non-carbonated RAs, all durability indicators of cRAC are improved by 13–55% because of the densified microstructure after carbonation. Optimized carbonation methods (i.e., adjusting moisture content and using biomaterials) are suggested to improve the quality of carbonated RAs further.
format Article
id doaj-art-3e6450fdc1744a9ba9cf40bbc81c70b4
institution Kabale University
issn 2948-1775
language English
publishDate 2025-08-01
publisher Nature Portfolio
record_format Article
series npj Materials Sustainability
spelling doaj-art-3e6450fdc1744a9ba9cf40bbc81c70b42025-08-24T11:51:24ZengNature Portfolionpj Materials Sustainability2948-17752025-08-013111210.1038/s44296-025-00071-xDurability performance of concrete incorporating carbonated recycled coarse aggregates: a reviewZhidong Zhang0Ueli Angst1Viacheslav Troian2Bingbing Guo3Qiang Zeng4Institute for Building Materials, ETH ZurichInstitute for Building Materials, ETH ZurichInstitute for Building Materials, ETH ZurichSchool of Civil Engineering, Xi’an University of Architecture and TechnologyDepartment of Civil Engineering and Architecture, Zhejiang UniversityAbstract Carbonation of recycled coarse aggregates (RAs) has drawn significant attention in recent years. This study shows that most durability indicators of carbonated RAs concrete (cRAC) are lower than natural aggregate concrete, while compared to concrete with non-carbonated RAs, all durability indicators of cRAC are improved by 13–55% because of the densified microstructure after carbonation. Optimized carbonation methods (i.e., adjusting moisture content and using biomaterials) are suggested to improve the quality of carbonated RAs further.https://doi.org/10.1038/s44296-025-00071-x
spellingShingle Zhidong Zhang
Ueli Angst
Viacheslav Troian
Bingbing Guo
Qiang Zeng
Durability performance of concrete incorporating carbonated recycled coarse aggregates: a review
npj Materials Sustainability
title Durability performance of concrete incorporating carbonated recycled coarse aggregates: a review
title_full Durability performance of concrete incorporating carbonated recycled coarse aggregates: a review
title_fullStr Durability performance of concrete incorporating carbonated recycled coarse aggregates: a review
title_full_unstemmed Durability performance of concrete incorporating carbonated recycled coarse aggregates: a review
title_short Durability performance of concrete incorporating carbonated recycled coarse aggregates: a review
title_sort durability performance of concrete incorporating carbonated recycled coarse aggregates a review
url https://doi.org/10.1038/s44296-025-00071-x
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AT viacheslavtroian durabilityperformanceofconcreteincorporatingcarbonatedrecycledcoarseaggregatesareview
AT bingbingguo durabilityperformanceofconcreteincorporatingcarbonatedrecycledcoarseaggregatesareview
AT qiangzeng durabilityperformanceofconcreteincorporatingcarbonatedrecycledcoarseaggregatesareview