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http://dx.doi.org/10.4334/JKCI.2017.29.3.267

Correlation between Crack Width and Water Flow of Cracked Mortar Specimens Measured by Constant Water Head Permeability Test  

Choi, Seul-Woo (Self-healing Green Concrete Research Center, Sungkyunkwan University)
Bae, Won-Ho (Civil, Architectural and Environmental System Engineering, Sungkyunkwan University)
Lee, Kwang-Myong (Civil, Architectural and Environmental System Engineering, Sungkyunkwan University)
Shin, Kyung-Joon (Department of Civil Engineering, Chungnam National University)
Publication Information
Journal of the Korea Concrete Institute / v.29, no.3, 2017 , pp. 267-273 More about this Journal
Abstract
Recently, the researches of self-healing concrete technology are being carried out actively due to the advent of importance for the maintenance of concrete structures. A water permeability test has been widely used for the evaluation of self-healing performance. However, it is difficult to compare tests results since there is no standard test method related to the self-healing. A standard method for measuring the crack width does not exist neither though the self-healing performance is significantly influenced by the initial crack width. In this study, the effect of water head and crack width on water flow was investigated using a constant water head permeability test equipment. The correlation equation between the initial crack width and water flow was suggested through the regression analysis of test data, and the predicted crack widths agree well with the real crack widths measured using microscopy.
Keywords
permeability test; mortar; crack width; water flow; self-healing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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