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Experimental Study on Bond Strength of Deformed Bars in Artificial Lightweight Aggregate Concrete  

Cho, Jang-Se (경희대학교 건축공학과)
La, Sung-Jun (경희대학교 건축공학과)
Kim, Min-Sook (경희대학교 건축공학과)
Lee, Young-Hak (경희대학교 건축공학과)
Kim, Hee-Cheul (경희대학교 건축공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.24, no.1, 2011 , pp. 43-53 More about this Journal
Abstract
For reinforced concrete members, the bond strength is one of the important factors between two materials: concrete and reinforcing element. This study concerns the bond strength of deformed bars in artificial lightweight aggregate concrete by pull-out test. 144 cubic specimens were manufactured for the test. concrete compressive strength, size of deformed bar and embedment lengths were considered as variables in this study. Normal concrete with W/C ratio 50% specimens were tested for the comparison. Test results included the bond stress-slip responses and modes of failure. Bond strength increased with an increase of compressive strength of concrete according to W/C ratio. The equation of bond stress of polymer-modified lightweight aggregate concrete were proposed by regression analysis based on the result.
Keywords
bond strength; artificial lightweight aggregate concrete; pull-out test; embedment length;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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