American Journal of Applied Scientific Research
Volume 3, Issue 6, November 2017, Pages: 80-86
Received: Jul. 5, 2017;
Accepted: Jul. 18, 2017;
Published: Nov. 28, 2017
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Meseret Getnet Meharie, Department of Civil Engineering, Pan African University Institute for Basic Sciences, Technology and Innovation, Nairobi, Kenya; Department of Construction Technology and Management, Adama Science and Technology University, Adama, Ethiopia
James Wambua Kaluli, Department of Civil Engineering, Pan African University Institute for Basic Sciences, Technology and Innovation, Nairobi, Kenya
Zachary Abiero-Gariy, Department of Civil Engineering, Pan African University Institute for Basic Sciences, Technology and Innovation, Nairobi, Kenya
Nandyala Darga Kumar, Department of Civil Engineering, Fiji National University (FNU), Samabula, Suva, Fiji Islands
Self-healing concrete is the ability of concrete to repair its cracks autogenously or autonomously. Since some years ago, several studies have been conducted towards the improvement of self-healing efficiency of cracked concrete structures through various methods for the betterment of its application. However, there is a need to prepare a thorough review report on the factors that affect self-healing efficiency of concrete. This paper focusses a review on several factors that affect the self-repairing efficiency of self-healing smart concrete from the extant recent literature. Based on the review carried out, it can be concluded that formation of CaCO3 or Ca (OH) 2 in natural process, the dosage of capsule and type of healing agent in chemical process, and the type of bacteria and precipitation of CaCO3 in biological process of self-healing are the most vivid factors. It can also be summarised as better self-healing efficiency is achieved during early age of concrete, with narrower cracks, higher concentration of Ca2+ ions, optimum thickness of capsule shell and dosage of capsule.
Meseret Getnet Meharie,
James Wambua Kaluli,
Nandyala Darga Kumar,
Factors Affecting the Self-Healing Efficiency of Cracked Concrete Structures, American Journal of Applied Scientific Research.
Vol. 3, No. 6,
2017, pp. 80-86.
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