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影响因子：7.4

DOI码：10.1016/j.conbuildmat.2024.136067

发表刊物：Construction and Building Materials

摘要：Ammonium carbonate was used as the carbonation accelerator for air-hardening lime mortars in this study. Various analytical methods, including XRD, IR, TGA-DSC and SEM were employed to access the phase transformation, degree of carbonation and microstructural features of the lime-based mortars. The paper explores the correlation between the mechanical strength, microstructure of cured lime mortars and the composition/carbonation degree with the crystallization behaviors in Ca(OH)2/CaCO3 binders. The results indicate that ammonium carbonate significantly accelerates the carbonation reaction and increases the early mechanical strength of air-hardening lime mortars. The mechanical strength of these modified lime mortars can be comparable to that of natural hydraulic lime (NHL). The aggregation behaviors of nano-CaCO3 under kinetic control, are believed to contribute much to the compact pore-structures and robust mechanical strength of lime mortars. This viable accelerating carbonation method holds promise for enhancing the properties of various lime-containing building materials in conservation and modern buildings.

合写作者：Yifan Zhao,Xuan Wu

第一作者：Mengjun jia

论文类型：期刊论文

通讯作者：Xiao Ma

卷号：425,

页面范围：136067

是否译文：否

发表时间：2024-04-26

收录刊物：SCI、EI

发布期刊链接：https://www.sciencedirect.com/science/article/abs/pii/S095006182401208X?dgcid=author