TEST STUDY ON BOND PROPERTIES BETWEEN HIGH STRENGTH STEEL BAR AND RECYCLED AGGREGATE CONCRETE

Chen Zongping; Xu Jinjun; Huang Kaiwang; Su Yisheng

doi:10.13204/j.gyjz201311004

Volume 43 Issue 11

Dec. 2014

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Chen Zongping, Xu Jinjun, Huang Kaiwang, Su Yisheng. TEST STUDY ON BOND PROPERTIES BETWEEN HIGH STRENGTH STEEL BAR AND RECYCLED AGGREGATE CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 16-20. doi: 10.13204/j.gyjz201311004

Citation:

Chen Zongping, Xu Jinjun, Huang Kaiwang, Su Yisheng. TEST STUDY ON BOND PROPERTIES BETWEEN HIGH STRENGTH STEEL BAR AND RECYCLED AGGREGATE CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 16-20. doi: 10.13204/j.gyjz201311004

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TEST STUDY ON BOND PROPERTIES BETWEEN HIGH STRENGTH STEEL BAR AND RECYCLED AGGREGATE CONCRETE

doi: 10.13204/j.gyjz201311004

1.
1. College of Civil and Architectural Engineering,Guangxi University,Nanning 530004,China;
2.
2. Guangxi Key Laboratory of Disaster Prevention and Engineering Safty of Ministry of Education,Nanning 530004,China;
3.
3. Nanning Architectural Design Institute,Nanning 530022,China

Received Date: 2013-02-15
Publish Date: 2013-11-20

Abstract

Abstract

In order to research the bond mechanism between high strength steel bar and recycled coarse aggregate concrete( RCAC),15 high strength steel bar RCAC cube specimens whose length of side was 150 mm were designed to launch the push-out test with recycled coarse aggregate replacement ratio and embedment length of high strength steel bar being the changing parameters. Characteristic point parameters on curves of loading-end and free-end were obtained,and computational formula of each feature point bond strength was gained by regression. The influence of each changing parameter on bond strength was analyzed,and practical bond strength calculation formulas were adopted to calculate contrastively. The result shows that the main failure mode between high strength steel bar and RCAC is splitting failure. The bond stength at each characteristic point is decreased with an increase in the replacement ratio of RCA. The interface bonding strength between steel bar and RCAC is increased with the increasing of embedment length.
- high strength steel bar,
- recycled coarse aggregate concrete (ＲCAC),
- bond strength,
- replacement ratio

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References(13)

References

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