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http://dx.doi.org/10.14190/JRCR.2020.8.4.581

An Experimental Study on the Mechanical Healing Properties of Self-Healing Mortar with Solid Capsules Using Crystal Growth Type Inorganic Materials  

Choi, Yun-Wang (Department of Civil Engineering, Semyung University)
Nam, Eun-Joon (Department of Civil Engineering, Semyung University)
Oh, Sung-Rok (Institute of Technology, Newjust Co., Ltd)
Lee, Kwang-Myong (Department of Civil and Environmental Engineering, Sungkyunkwan University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.8, no.4, 2020 , pp. 581-589 More about this Journal
Abstract
In this paper, a solid capsule was prepared using a crystal growth type inorganic material capable of hydration reaction, the quality and mechanical healing properties of self-healing mortar with solid capsules were evaluated. Solid capsules were mixed 5% by mass of cement. Reloading test results of compressive load, it was found to improve about 20% on average for the natural healing effect of Plain, in the case of the elastic range, the healing rate was about 79% at the 7 days of healing age and 98% at the 28 days of healing age. Reload test results of flexural load, in the case of the elastic range, the healing rate was about 79% at the 7 days of healing age and 98% at the 28 days of healing age. Through these results, it is judged that the healing performance of solid capsules has also an effect on mechanical healing properties such as strength in addition to the durability properties obtained by the permeability test. Since the strength tends to decrease as the solid capsules are mixed, it is considered necessary to compensate.
Keywords
Crystal growth type; Mechanical healing; Inorganic materials; Solid capsules; Self-healing mortar;
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Times Cited By KSCI : 4  (Citation Analysis)
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