Self-healing capability of cementitious materials with crystalline admixtures and super absorbent polymers (SAPs)
- Authors
- Park, Byoungsun; Choi, Young Cheol
- Issue Date
- 20-Nov-2018
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Self-healing; Water flow test; Cementitious material; Crystalline admixture; SAPs
- Citation
- CONSTRUCTION AND BUILDING MATERIALS, v.189, pp.1054 - 1066
- Journal Title
- CONSTRUCTION AND BUILDING MATERIALS
- Volume
- 189
- Start Page
- 1054
- End Page
- 1066
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3077
- DOI
- 10.1016/j.conbuildmat.2018.09.061
- ISSN
- 0950-0618
- Abstract
- In this study, the self-healing property of cementitious materials with crystalline admixtures (CAs) and super absorbent polymers (SAPs) was investigated. Specimens were pre-cracked with a crack width of 0.210-0.304 mm at 7 and 28 days. The self-healing capacity was evaluated with the water flow test and crack closing test, and self-healing products were investigated with a scanning electron microscope (SEM). The water flow of specimens containing CAs greatly decreased relative to that of the plain specimen after self-healing. The results indicate that the CAs increased the self-healing capability of cement-based materials. The specimen containing SAPs was observed to re-swell and seal cracks. For example, the water flow was reduced 100% in the case with a 0.256 mm crack width. Using CAs with SAPs accelerated the crack sealing. SEM observation confirmed that CAs produced more self-healing products around SAPs. (C) 2018 Elsevier Ltd. All rights reserved.
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Collections - 공과대학 > 토목환경공학과 > 1. Journal Articles
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