Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 118, Issue -, Pages 127-138Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.05.040
Keywords
Steel bar; Bond strength; Corrosion; Concrete cover; Stirrups
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Funding
- Zhejiang Provincial Natural Science Foundation - China [LR12E08001]
- Ministry of Education of China [NCET-12-0493]
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The bond tests were carried out on 18 beam specimens to investigate the bond behavior between concrete and corroded steel bars, with corrosion and stirrups being the principal parameters. Through systematical analysis of the test results and extensive test data from the literature, the confinements were found to have significant influence on the bond strength. Considering the effects of concrete cover, stirrups and corrosion current density, empirical model for the degradation of bond strength was established. It is concluded that the proposed model can predict the test results with reasonable accuracy. (C) 2016 Elsevier Ltd. All rights reserved.
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