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Seawater-ion-bound Self-healing Agents and the Working Mechanism in Cracked Hardened Cement Paste
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Haoliang HUANG1, 2, Xintong WU1, Hao LIU1, Chuhan PENG1, Jie HU1, 2, Suhong YIN1, 2, Jiangxiong WEI1, 2, Qijun YU1, 2
Journal of the Chinese Ceramic Society | 2021, 49(8) : 1619 - 1630
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Journal of the Chinese Ceramic Society | 2021, 49(8): 1619-1630
• Research Article •
Seawater-ion-bound Self-healing Agents and the Working Mechanism in Cracked Hardened Cement Paste
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Haoliang HUANG1, 2, Xintong WU1, Hao LIU1, Chuhan PENG1, Jie HU1, 2, Suhong YIN1, 2, Jiangxiong WEI1, 2, Qijun YU1, 2
Affiliations
  • 1.School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
  • 2.Guangdong Low Carbon Technologies Engineering Centre for Building Materials, Guangzhou 510640, China

    • HUANG Haoliang (1983-), male, Associate researcher. E-mail:

About Author:

HUANG Haoliang (1983-), male, Associate researcher. E-mail:

Published: 2021-08-20 doi: 10.14062/j.issn.0454-5648.20200767
Outline
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A self-healing agent that can bind aggressive seawater ions and accelerate the healing process was developed, which was encapsulated as artificial aggregates. The closure ratio of a 400-μm-wide crack is 80% after self-healing for 24 h in seawater by using the self-healing agent, which is 4 times greater than that in referenced specimens. The reaction products formed at the crack mouth are mainly brucite and calcite, while in the aggregates intersected by the crack there are portlandite, calcite, Friedel's salt, ettringite and hydrotalcite, indicating that the aggressive ions can be bound by the self-healing agent. The mineralogy and distribution characteristic of the reaction products are dependent on the diffusion of the ions dissolving from the agents and the thermodynamic equilibrium constants of the reaction products.

self-healing of cracks  /  ion binding  /  fast self-healing  /  marine environments  /  cement and concrete
黄浩良, 吴欣桐, 刘昊, 彭楚汗, 胡捷, 殷素红, 韦江雄, 余其俊. 固化海水离子裂缝自修复剂制备及其在硬化水泥浆体中的作用机理. 硅酸盐学报, 2021 , 49 (8) : 1619 -1630 . DOI: 10.14062/j.issn.0454-5648.20200767
Haoliang HUANG, Xintong WU, Hao LIU, Chuhan PENG, Jie HU, Suhong YIN, Jiangxiong WEI, Qijun YU. Seawater-ion-bound Self-healing Agents and the Working Mechanism in Cracked Hardened Cement Paste[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (8) : 1619 -1630 . DOI: 10.14062/j.issn.0454-5648.20200767
Appendix
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Year 2021 volume 49 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20200767
  • Receive Date：2020-10-14
  • Online Date：2026-10-30
  • Published：2021-08-20
Article Data
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History
  • Received：2020-10-14
  • Revised：2020-11-16
Funding
Affiliations
    1.School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
    2.Guangdong Low Carbon Technologies Engineering Centre for Building Materials, Guangzhou 510640, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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