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http://dx.doi.org/10.11112/jksmi.2018.22.3.084

Evaluation of Crack Self-healing Performance in Centrifugal Molding Concrete by Permeability Test  

Hwang, Chul Sung (Dept. of Civil and Environmental Eng. Gachon University)
Woo, Hae Sik (Dept. of Civil and Environmental Eng. Gachon University)
Choi, Young Cheol (Dept. of Civil and Environmental Eng. Gachon University)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.22, no.3, 2018 , pp. 84-89 More about this Journal
Abstract
Recently, study on self-healing materials have been performed to increase the life by repairing the damage of structures themselves, which are difficult to repair or require high maintenance costs. A water permeability test has been widely used for the evaluation of self-healing performance. However, in the self-healing performance test method, the initial crack width of the concrete greatly affects on the self-healing performance but it does not have a consistent standard. Therefore, in this study, the correlation between crack and permeability and that between time and permeability were analyzed based on crack width and permeability. In addition, since the initial crack width measured by optical microscope is not reliable, the value is derived from the Poiseuille flow and the tendency of time-permeability and time-crack width are analyzed.
Keywords
Self-helaing; Permeability test; Centrifugal modling; GGBS;
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