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dc.contributor.authorDesnerck, Pieteren
dc.contributor.authorLees, Janeten
dc.contributor.authorMorley, Chris Ten
dc.date.accessioned2015-07-13T14:41:22Z
dc.date.available2015-07-13T14:41:22Z
dc.date.issued2015-07-07en
dc.identifier.citationConstruction and Building Materials Volume 94, 30 September 2015, Pages 126–136. DOI: 10.1016/j.conbuildmat.2015.06.043en
dc.identifier.issn0950-0618
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/248908
dc.description.abstractDue to the relatively low tensile strength of concrete, cracks are inherent in reinforced concrete structures. A common cause of cracking is the corrosion of internal steel reinforcement, a deterioration process that can affect the bond behaviour and anchorage capacity of reinforcing bars. Corrosion leads to a reduction of the reinforcing bar diameter, the formation of a weak layer of corrosion products around the bar and expansive forces on the surrounding concrete (that can lead to cracking). In the past, the impact of corrosion on bond has been investigated by means of accelerated corrosion tests. However, the more fundamental impact of cracking as distinct from corrosion products on the bond reduction is still not fully understood. This study applies a novel test method to investigate the bond behaviour of reinforcing bars in cylindrical cracked reinforced concrete specimens. The influence of the number of cracks, crack orientation, confinement and concrete cover are investigated. The results indicate a significant loss of bond strength for single cracked specimens. This reduction becomes as high as 65% for double cracked specimens in the absence of confinement. It is shown that the crack orientation with respect to the rib pattern is of minor influence, but the concrete cover and confinement play a significant role in the obtained bond characteristics.
dc.description.sponsorshipThe authors would like to gratefully acknowledge the financial support of the UK Engineering and Physical Sciences Research Council (EPSRC) through the EPSRC Project ‘Reinforced concrete half-joint structures: Structural integrity implications of reinforcement detailing and deterioration’ [Grant no. EP/K016148/1].
dc.languageEnglishen
dc.language.isoenen
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivs 2.0 UK: England & Wales*
dc.rightsCreative Commons Attribution 4.0
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.0/uk/*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBond strengthen
dc.subjectcorrosionen
dc.subjectpull-out strengthen
dc.titleBond Behaviour of Reinforcing Bars in Cracked Concreteen
dc.typeArticle
dc.description.versionThis is the final version of the article. It first appeared from Elsevier via http://dx.doi.org/10.1016/j.conbuildmat.2015.06.043en
prism.endingPage136
prism.publicationDate2015en
prism.publicationNameConstruction and Building Materialsen
prism.startingPage126
prism.volume94en
dc.rioxxterms.funderEPSRC
dc.rioxxterms.projectidEP/K016148/1
rioxxterms.versionofrecord10.1016/j.conbuildmat.2015.06.043en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2015-07-07en
dc.contributor.orcidDesnerck, Pieter [0000-0002-8042-9741]
dc.contributor.orcidLees, Janet [0000-0002-8295-8321]
dc.identifier.eissn1879-0526
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/K016148/1)
pubs.funder-project-idEPSRC (EP/J002887/1)


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Attribution-NonCommercial-NoDerivs 2.0 UK: England & Wales
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial-NoDerivs 2.0 UK: England & Wales