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dc.contributor.authorWang, X.
dc.contributor.authorDing, S.
dc.contributor.authorQiu, L.
dc.contributor.authorAshour, Ashraf A.
dc.contributor.authorWang, Y.
dc.contributor.authorHan, B.
dc.contributor.authorOu, J.
dc.date.accessioned2022-05-07T16:24:29Z
dc.date.accessioned2022-05-16T13:55:39Z
dc.date.available2022-05-07T16:24:29Z
dc.date.available2022-05-16T13:55:39Z
dc.date.issued2022-06
dc.identifier.citationWang X, Ding S, Qiu L et al (2022) Improving bond of fiber-reinforced polymer bars with concrete through incorporating nanomaterials. Composites Part B: Engineering. 239: 109960.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18963
dc.descriptionYesen_US
dc.description.abstractThe bond between FRP bars and concrete, the foremost performance for implementation of such reinforcements to corrosion-free concrete structures, is still unsatisfied due to the weak nature of duplex film in the interface. The existing approaches show low efficiency in improving the microstructures and bond between FRP bars and concrete. To address these issues, this paper provided a new approach for improving the bond between FRP bars and concrete by incorporating nanomaterials, as well as explored the modifying mechanisms and established the bond-slip models. For these purposes, the pull-out test, scanning electron microscope observation, as well as energy dispersive spectrometry analysis were performed. The experimental results demonstrated that the presence of nanomaterials increased the ultimate bond strengths between glass/carbon FRP bars and concrete by up to 16.2% and 37.8%, while the corresponding slips decreased by 28.7% and 35.4%, respectively. Such modification effects can be attributed to the optimized intrinsic composition and the reduced pore content of hydration products in the interface, especially in the duplex film, through the nanomaterial enrichment and nano-core effects. The bond-slip relationship between FRP bars and concrete with nanomaterials can be accurately predicted by the mBPE model.en_US
dc.description.sponsorshipThe authors would like to thank the funding offered by the National Science Foundation of China (51978127 and 51908103), and the Fundamental Research Funds for the Central Universities (DUT21RC(3) 039).en_US
dc.language.isoenen_US
dc.publisherElsevier
dc.relation.isreferencedbyhttps://doi.org/10.1016/j.compositesb.2022.109960en_US
dc.rights© 2022 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.en_US
dc.subjectConcreteen_US
dc.subjectFiber-reinforced polymer barsen_US
dc.subjectNanomaterialsen_US
dc.subjectBonden_US
dc.subjectInterfaceen_US
dc.titleImproving bond of fiber-reinforced polymer bars with concrete through incorporating nanomaterials  en_US
dc.status.refereedYesen_US
dc.date.Accepted2022-05-07
dc.date.application2022-05-11
dc.typeArticleen_US
dc.date.EndofEmbargo2023-05-11
dc.type.versionAccepted manuscripten_US
dc.description.publicnotesThe full-text of this article will be released for public view at the end of the publisher embargo on 11th May 2023.
dc.rights.licenseCC-BY-NC-NDen_US
dc.date.updated2022-05-07T16:24:33Z
refterms.dateFOA2022-05-16T13:56:17Z
dc.openaccess.statusopenAccessen_US


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