Evaluation of Autogenous Healing in Flexural Mortar Members by Chloride Ion Penetration Resistance
- Authors
- Park, Byoungsun; Choi, Youngcheol
- Issue Date
- Jun-2021
- Publisher
- MDPI
- Keywords
- Autogenous healing; Chloride ion penetration test; Flexural member; Mineral admixture; Water flow test
- Citation
- Nanomaterials, v.11, no.6
- Journal Title
- Nanomaterials
- Volume
- 11
- Number
- 6
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/81598
- DOI
- 10.3390/nano11061622
- ISSN
- 2079-4991
- Abstract
- In this study, we investigated the effects of mineral admixtures on the autogenous healing of flexural mortar members through a chloride ion penetration test. The mineral admixtures used were ground granulated blast-furnace slag (GGBS), fly ash, silica fume (SF), clinker binder, and clinker sand. Through a four-point bending test, a crack of approximately 100 µm was induced at the bottom of the flexural mortar member, and the chloride ion penetration depth through the crack was measured to evaluate the self-healing performance. Additionally, we analyzed the correlation between the self-healing performances, which was measured through water flow and water absorption tests. The experimental results showed that the chloride ion penetration depth decreased due to crack healing, and the self-healing performance of the GGBS and SF was the highest. It was found that the subtle change in the self-healing performance was more accurately evaluated by the chloride ion penetration test. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
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Collections - 공과대학 > 토목환경공학과 > 1. Journal Articles
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