Effect of healing products on the self-healing performance of cementitious materials with crystalline admixtures
- Authors
- Park, Byoungsun; Choi, Young Cheol
- Issue Date
- Feb-2021
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Crystalline admixture; Further hydration; Phase composition; Self-healing concrete; Self-healing products
- Citation
- Construction and Building Materials, v.270
- Journal Title
- Construction and Building Materials
- Volume
- 270
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79944
- DOI
- 10.1016/j.conbuildmat.2020.121389
- ISSN
- 0950-0618
- Abstract
- This study examined the correlation between the self-healing products and self-healing performance of cementitious materials with ground granulated blast-furnace slag, a calcium sulfoaluminate expansion agent, and crystalline additives. Self-healing products were collected through artificial cracks produced by overlapping paste slice specimens. Their phase composition was analyzed through thermogravimetry/derivative thermogravimetry by classifying calcite, portlandite, and M70-200. The phase composition generated by internal curing was analyzed through back-scattered electron imaging, exhibiting calcite, C–S–H, and C–A–H. Self-healing performance was evaluated through a water flow test, demonstrating that the greater the contents of calcite and M70-200, the better the self-healing performance. © 2020 Elsevier Ltd
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Collections - 공과대학 > 토목환경공학과 > 1. Journal Articles
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