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The Estimation of Durability Factor of Deteriorated Jointed Concrete Pavement Using Image Analysis Test  

Choi, Pan-Gil (강원대학교 토목공학과)
Kim, Yong-Gon (대상이앤씨(주))
Yun, Kyong-Ku (강원대학교 토목공학과)
Kwon, Soo-Ahn (한국건설기술연구원 도로시설연구실)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.9, no.5, 2009 , pp. 31-38 More about this Journal
Abstract
The primary objective of this study was to estimate the deterioration degree of jointed concrete pavement which was major concrete pavement type in Korea. First of all, visual survey of concrete pavement was performed to observe deterioration types. In the result of visual survey, the majority of concrete pavement deterioration was investigated in joint area. It is appeared that most of the distresses are durability cracking and joint distress. Second, concrete core specimens were taken from eight locations including good section (4 locations) and bad section (4 locations) based on visual survey. The deterioration reasons of concrete pavement were analyzed with ultrasonic pulse velocity test, splitting tensile strength test, and image analysis for concrete core specimens. Among the image analysis test result for 21 concrete core specimens, only two specimens satisfied the Kansas DOT criteria of spacing factor, $250\;{\mu}m$, and the remains of 19 specimens were estimated to be above $250\;{\mu}m$. The durability factor of concrete was estimated very low. As a result, it was analyzed that the main deterioration reason of the deteriorated jointed concrete pavement was to be freezing and thawing damages.
Keywords
jointed concrete pavement; deterioration; image analysis; durability factor; spacing factor; freezing and thawing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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