Concrete Research and Technology
Online ISSN : 2186-2745
Print ISSN : 1340-4733
ISSN-L : 1340-4733
Development of Self-Healing Concrete with Heating Device
Tomoya NishiwakiHirozo MihashiByung-Koog JangMinoru Sugita
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2005 Volume 16 Issue 2 Pages 81-88


In this paper, a fundamental design concept and some experimental results are reported to develop a kind of intelligent concrete that has the self-healing function with heating device. Self-diagnosis composite is employed as the heating device that can heat up the damaged part in concrete. This heating device is embedded in concrete and it heats up the damaged part of concrete once a crack occurs to cross the device. In the meanwhile, a pipe protected by heat-plasticity film containing repair agent is embedded in concrete, too. Hence, selective heat around crack can melt the film to release the repair agent into crack and harden the repair agent in crack. Experimental results confirm the suggested method to be effective.

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© Japan Concrete Institute
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