Permeability and pore structure of microcapsule-based self-healing cementitious composite
Permeability and pore structure of microcapsule-based self-healing cementitious composite
复制标题
微胶囊基自修复水泥基复合材料的渗透率和孔结构
DOI：
10.1016/j.conbuildmat.2017.12.008
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发表时间：
2018-03-20
影响因子：
7.4
通讯作者：
Xing, F.
中科院分区：
文献类型：
--
作者：
Wang, X. F.;Zhang, J. H.;Xing, F.
采用快速氯离子迁移、水压渗透、碳化和压汞孔隙率测试方法，研究了添加不同粒径和成分的有机微胶囊对水泥基复合材料的渗透性、抗碳化性、孔隙结构和自愈合效率的影响。研究发现，将微胶囊含量增加到3%可改善孔隙结构和抗渗性。然而，当微胶囊含量为6%时，材料的抗渗性甚至比不含微胶囊的试样更低。粒径的变化虽然改善了孔隙结构，但对抗渗性有轻微的负面影响。增加微胶囊含量和粒径可提高试样的抗渗性、孔隙结构和自愈合效率。（C）2017由爱思唯尔有限公司出版
The effects of adding organic microcapsules having various particle sizes and composition on the permeability, carbonation resistance, pore structure, and self-healing efficiency of cementitious composite material were studied using rapid chloride migration, water pressure penetration, carbonation, and mercury intrusion porosimetry tests. It was found that increasing microcapsule content to 3% improved pore structure and impermeability. However, with 6% microcapsule content, the material impermeability became even lower than that of a specimen without microcapsules. The variation of particle sizes had a slight negative impact on impermeability although it improved pore structure. Increasing microcapsule content and particle size enhanced impermeability, pore structure, and self-healing efficiency of specimens. (C) 2017 Published by Elsevier Ltd.