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http://dx.doi.org/10.5345/JKIBC.2016.16.4.289

Self-Healing Properties of Fiber-Reinforced Cement Composite (FRCC) Depending on Various Curing Conditions  

Choi, Heesup (Department of Civil Engineering, Kitami Institute of Technology)
Choi, Hyeonggil (Graduate School of Engineering, Muroran Institute of Technology)
Publication Information
Journal of the Korea Institute of Building Construction / v.16, no.4, 2016 , pp. 289-296 More about this Journal
Abstract
In this study, the self-healing effect of a fiber-reinforced cement composite (FRCC) was examined using a drying-wetting test and an outdoor exposure test. The influence of various curing conditions on the self-healing effect of the FRCC was also investigated. The effect of self-healing was evaluated using a permeability coefficient and by investigating the cracks using a optical microscope. The results confirmed that the FRCC was capable of self-healing under a long wetting time and a low drying temperature. In addition, watertight performance by self-healing was shown to have a significant influence on wetting time. Meanwhile, this self-healing effect was enhanced by hydration as a result of rainfall when the FRCC was put under actual environmental conditions. Moreover, it was determined that cracking self-healing can be improved by using the appropriate admixture materials.
Keywords
cracking; self-healing; FRCC; outdoor exposure test; permeability test;
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