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http://dx.doi.org/10.5345/JKIBC.2021.21.6.573

An Experimental Study on the Applicability of Mechanochromic Sensors for Monitoring Tensile Strain of Concrete Materials  

Pyeon, Su-Jeong (Department of Architectural Engineering, Chungnam National University)
Choe, Gyeong-Chol (Department of Building Research, Korea Institute of Civil engineering and Building Technology)
Kim, Hong-Seop (Department of Building Research, Korea Institute of Civil engineering and Building Technology)
Kim, Gyu-Yong (Department of Architectural Engineering, Chungnam National University)
Nam, Jeong-Soo (Department of Architectural Engineering, Chungnam National University)
Publication Information
Journal of the Korea Institute of Building Construction / v.21, no.6, 2021 , pp. 573-581 More about this Journal
Abstract
In this study, a basic experiment was conducted to examine the possibility of using mechanochromic sensors to monitor the health of construction structures. The strain and color variation characteristics of the mechanochromic sensor according to the type of finish of the concrete material were investigated. As a result, it was confirmed that the strain and color variation reactivity of the mechanochromic sensor increased as the tensile strain of the concrete specimen increased. In addition, the difference in the finishing environments of concrete, urethane, epoxy, water-based paint and oil-based paint did not affect the deformation and discoloration characteristics of the mechanochromic sensor.
Keywords
mechanochromic sensor; monitoring; color variation; concrete crack;
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