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dc.contributor.authorChoi, Oan Chul
dc.contributor.authorDarwin, David
dc.contributor.authorMcCabe, Steven L.
dc.identifier.citationChoi, O.C., Darwin, D., and McCabe, S.L., "Bond Strength of Epoxy-Coated Reinforcement to Concrete," SM Report No. 25, University of Kansas Center for Research, Inc., Lawrence, Kansas, July 1990, 217 pp.en_US
dc.description.abstractBeam-end specimens were used to determine the effects of coating thickness (3 to 17 mils), bar size (No. 5 - No . 11), bar position (top- cast and bottom- cast), deformation pattern (3 patterns), and cover (1, 2 and 3 bar diameters) on the bond strength between de - formed reinforcement and concrete . The reduction of bond strength by epoxy coating is a function of deformation pattern, bar size, and coating thickness. The bond strength of small bars is more sensitive to coating thickness than the bond strength of larger bars. Large bars are affected more by the presence of epoxy coating than small bars. Bars with relatively larger rib bearing areas are affected less by the coating than bars with smaller bearing areas. Epoxy-coated top cast bars are affected less by the coating than bottomcast bars. Designs based on these observations will be less conservative than those based on the development length provisions in the 1989 ACI Building Code. Nonlinear finite element analysis was conducted to study the role played by epoxy coatings. The model includes representations for deformed steel bar, concrete, and the interfacial material. The interface is represented by special link elements. The longitudinal splitting crack is modeled using a nonlinear fracture mechanics scheme. The interfacial properties, mainly friction, govern bond performance. The finite element studies reveal close agreement between observed laboratory behavior and the computer results.en_US
dc.publisherUniversity of Kansas Center for Research, Inc.en_US
dc.relation.ispartofseriesSM Report;25
dc.subjectBeam-end specimenen_US
dc.subjectBond (concrete to reinforcement)en_US
dc.subjectDeformed reinforcementen_US
dc.subjectEpoxy-coated reinforcementen_US
dc.subjectFictitious crack modelen_US
dc.subjectFracture mechanicsen_US
dc.subjectMohr-Coulomb surfaceen_US
dc.subjectNonlinear finite element analysisen_US
dc.subjectReinforcing steelsen_US
dc.subjectSplitting cracken_US
dc.subjectStructural engineeringen_US
dc.titleBond Strength of Epoxy-Coated Reinforcement to Concreteen_US
dc.typeTechnical Report
kusw.kuauthorDarwin, David
kusw.kudepartmentCivil/Environ/Arch Engineeringen_US
kusw.oanotes2016/01/06: The institute granted permission to share these on KU Scholarworks: From: Lequesne, Remy D Sent: Wednesday, January 06, 2016 10:13 AM To: Reed, Marianne A. <> Subject: RE: Question re: digital publishing


I’ve heard nothing but favorable feedback about getting the reports at into KU Scholarworks.

How do we get started? Can we try a couple and see how it goes?


************************************************ Rémy Lequesne, PhD
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