掺碳酸化再生粗骨料混凝土的耐久性性能：综述

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

作者信息

Zhang Zhidong, Angst Ueli, Troian Viacheslav, Guo Bingbing, Zeng Qiang

机构信息

Institute for Building Materials, ETH Zurich, Zurich, Switzerland.

Department of Technology of Building Structures and Products, Kyiv National University of Construction and Architecture, Kyiv, Ukraine.

出版信息

Npj Mater Sustain. 2025;3(1):27. doi: 10.1038/s44296-025-00071-x. Epub 2025 Aug 18.

DOI:10.1038/s44296-025-00071-x

PMID:40837064

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12360947/

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.

摘要

近年来，再生粗骨料（RAs）的碳酸化受到了广泛关注。本研究表明，碳酸化再生粗骨料混凝土（cRAC）的大多数耐久性指标低于天然骨料混凝土，而与非碳酸化再生粗骨料混凝土相比，由于碳酸化后微观结构致密化，cRAC的所有耐久性指标提高了13-55%。建议采用优化的碳酸化方法（即调整含水量和使用生物材料）进一步提高碳酸化再生粗骨料的质量。