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- Publisher Website: 10.1016/j.engstruct.2020.111392
- Scopus: eid_2-s2.0-85092696068
- WOS: WOS:000595888800001
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Article: Bond degradation of non-uniformly corroded steel rebars in concrete
Title | Bond degradation of non-uniformly corroded steel rebars in concrete |
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Authors | |
Keywords | Bond degradation Cracking patterns Non-uniform corrosion Longitudinal rib Concrete cover |
Issue Date | 2021 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct |
Citation | Engineering Structures, 2021, v. 226, p. article no. 111392 How to Cite? |
Abstract | In this work, the bond degradation of non-uniformly corroded steel rebars embedded in concrete was studied. A total of 105 concrete specimens with accelerated corrosion of steel rebar were evaluated using the pull-out test. The influences of corrosion mode, corrosion level, orientation of the longitudinal rib, and the position of steel rebar on the bond degradation were analyzed. The cracking patterns of corrosion-induced cracks, bond failure modes, and bond stress-slip relations were discussed. The results showed that the orientation of longitudinal rib and the thickness of concrete cover play a vital role in determining the cracking patterns of corrosion-induced cracks. In comparison to the uniformly corroded specimens, the bond performance of specimens with non-uniform corrosion of steel rebar degraded more significantly, and this phenomenon became even more pronounced as the corrosion level increased. Moreover, the beneficial improvements caused by the expansive rust on the bond performance were greatly dependent on the degrees of concrete constraint and corrosion level. |
Persistent Identifier | http://hdl.handle.net/10722/293542 |
ISSN | 2023 Impact Factor: 5.6 2023 SCImago Journal Rankings: 1.661 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Fu, C | - |
dc.contributor.author | Fang, D | - |
dc.contributor.author | Ye, H | - |
dc.contributor.author | Huang, L | - |
dc.contributor.author | Wang, J | - |
dc.date.accessioned | 2020-11-23T08:18:18Z | - |
dc.date.available | 2020-11-23T08:18:18Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Engineering Structures, 2021, v. 226, p. article no. 111392 | - |
dc.identifier.issn | 0141-0296 | - |
dc.identifier.uri | http://hdl.handle.net/10722/293542 | - |
dc.description.abstract | In this work, the bond degradation of non-uniformly corroded steel rebars embedded in concrete was studied. A total of 105 concrete specimens with accelerated corrosion of steel rebar were evaluated using the pull-out test. The influences of corrosion mode, corrosion level, orientation of the longitudinal rib, and the position of steel rebar on the bond degradation were analyzed. The cracking patterns of corrosion-induced cracks, bond failure modes, and bond stress-slip relations were discussed. The results showed that the orientation of longitudinal rib and the thickness of concrete cover play a vital role in determining the cracking patterns of corrosion-induced cracks. In comparison to the uniformly corroded specimens, the bond performance of specimens with non-uniform corrosion of steel rebar degraded more significantly, and this phenomenon became even more pronounced as the corrosion level increased. Moreover, the beneficial improvements caused by the expansive rust on the bond performance were greatly dependent on the degrees of concrete constraint and corrosion level. | - |
dc.language | eng | - |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct | - |
dc.relation.ispartof | Engineering Structures | - |
dc.subject | Bond degradation | - |
dc.subject | Cracking patterns | - |
dc.subject | Non-uniform corrosion | - |
dc.subject | Longitudinal rib | - |
dc.subject | Concrete cover | - |
dc.title | Bond degradation of non-uniformly corroded steel rebars in concrete | - |
dc.type | Article | - |
dc.identifier.email | Ye, H: hlye@hku.hk | - |
dc.identifier.email | Huang, L: huangle@hku.hk | - |
dc.identifier.authority | Ye, H=rp02379 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.engstruct.2020.111392 | - |
dc.identifier.scopus | eid_2-s2.0-85092696068 | - |
dc.identifier.hkuros | 318758 | - |
dc.identifier.volume | 226 | - |
dc.identifier.spage | article no. 111392 | - |
dc.identifier.epage | article no. 111392 | - |
dc.identifier.isi | WOS:000595888800001 | - |
dc.publisher.place | United Kingdom | - |
dc.identifier.issnl | 0141-0296 | - |