Improving Bond Performance of Near-Surface Mounted Steel Ribbed and Threated Rods in the Concrete

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dc.contributor.authorFayed, Sabry
dc.contributor.authorMadenci, Emrah
dc.contributor.authorOzkilic, Yasin Onuralp
dc.contributor.authorZakaria, Mohamed H.
dc.date.accessioned2024-02-23T14:31:10Z
dc.date.available2024-02-23T14:31:10Z
dc.date.issued2024
dc.departmentNEÜen_US
dc.description.abstractIn this study, the experimental findings of twenty pull-out tests on the bond efficiency of threaded/ribbed steel rods used in near-surface mounting (NSM) are presented. On a groove (20 x 20 mm) that was slotted in one of the sides of a concrete block measuring 250 x 250 x 200 mm, a pull-out experiment was performed. The primary factors are the slot-filling materials (substrate concrete and epoxy paste), bonded length (equal to 5, 7, 10, and 15 times the rod diameter), surface pattern conditions (conventional ribbed reinforcing rebar and threaded bolt), use of nuts or rings welded at the free end of the bonded length, and use of straight or spiral wire welded along the length of the bonded length. The tested specimens' ultimate bond strength, slip, bond stress-slip response, failure patterns, stiffness, and ductility are recorded and assessed. The results showed that the ultimate bond strength and corresponding slip of ribbed rods cemented with epoxy were higher by 11.11% and 199%, respectively, than those of ribbed rods submerged in the substrate. Over the controls, all NSM epoxy-rods exhibited a greater ductility. As the bonded length increased, the ultimate bond strength of NSM rods fell by 12-32%. As the bonded length increased, the stiffness decreased. On the other hand, the ductility of NSM epoxy-rods increased as the bonded length increased. All applied schemes such as nuts, rings, longitudinal bars, and spiral bars significantly improved the ultimate bond strength (maximum = 25.93%) and corresponding slip (maximum = 166.67%) of NSM threaded rods as compared to the control ones.en_US
dc.description.sponsorshipKafr El Shiekh University; Kafrelsheikh University, Egypten_US
dc.description.sponsorshipThe experimental tests were carried out by the reinforced concrete laboratory of the faculty of Engineering, Kafrelsheikh University, Egypt.en_US
dc.identifier.doi10.1186/s40069-023-00643-y
dc.identifier.issn1976-0485
dc.identifier.issn2234-1315
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85181678579en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1186/s40069-023-00643-y
dc.identifier.urihttps://hdl.handle.net/20.500.12452/15058
dc.identifier.volume18en_US
dc.identifier.wosWOS:001137753900001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofInternational Journal Of Concrete Structures And Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectNear-Surface Mounted Approachen_US
dc.subjectBond Performanceen_US
dc.subjectSlipen_US
dc.subjectRibbed Steel Rodsen_US
dc.subjectThreaded Steel Rodsen_US
dc.subjectEnd Anchorageen_US
dc.subjectSurface Featuresen_US
dc.titleImproving Bond Performance of Near-Surface Mounted Steel Ribbed and Threated Rods in the Concreteen_US
dc.typeArticleen_US

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