ACI-440.3R-04-Guide-Test-Methods-for-Fiber-Reinfor

ACI440.3R-04becameeffectiveJune28,2004.Copyright©2004,AmericanConcreteInstitute.Allrightsreservedincludingrightsofreproductionanduseinanyformorbyanymeans,includingthemakingofcopiesbyanyphotoprocess,orbyelectronicormechanicaldevice,printed,written,ororal,orrecordingforsoundorvisualreproduc-tionorforuseinanyknowledgeorretrievalsystemordevice,unlesspermissioninwritingisobtainedfromthecopyrightproprietors.ACICommitteeReports,Guides,StandardPractices,andCommentariesareintendedforguidanceinplanning,designing,executing,andinspectingconstruction.Thisdocumentisintendedfortheuseofindividualswhoarecompetenttoevaluatethesignificanceandlimitationsofitscontentandrecommendationsandwhowillacceptresponsibilityfortheapplicationofthematerialitcontains.TheAmericanConcreteInstitutedisclaimsanyandallresponsibilityforthestatedprinciples.TheInstituteshallnotbeliableforanylossordamagearisingtherefrom.Referencetothisdocumentshallnotbemadeincontractdocuments.IfitemsfoundinthisdocumentaredesiredbytheArchitect/Engineertobeapartofthecontractdocuments,theyshallberestatedinmandatorylanguageforincorporationbytheArchitect/Engineer.440.3R-1Itistheresponsibilityoftheuserofthisdocumenttoestablishhealthandsafetypracticesappropriatetothespecificcircumstancesinvolvedwithitsuse.ACIdoesnotmakeanyrepresentationswithregardtohealthandsafetyissuesandtheuseofthisdocument.Theusermustdeterminetheapplicabilityofallregulatorylimitationsbeforeapplyingthedocumentandmustcomplywithallapplicablelawsandregulations,includingbutnotlimitedto,UnitedStatesOccupationalSafetyandHealthAdministration(OSHA)healthandsafetystandards.ACI440.3R-04Fiber-reinforcedpolymer(FRP)materialshaveemergedasapracticalmaterialforproducingreinforcingbarsandlaminatesforconcretestruc-tures.FRPreinforcingbarsandlaminatesofferadvantagesoversteelrein-forcementinthatFRPisnoncorrosiveandnonconductive.FRPreinforcingbars,grids,andtendonsarebeingusedfornonprestressedandprestressedconcretestructures.FRPlaminatesarebeingusedasexternalreinforcementforstrengtheningofexistingconcreteandmasonrystructures.Duetodiffer-encesinthephysicalandmechanicalbehaviorofFRPmaterialscomparedtosteel,uniquetestmethodsforFRPbarsandlaminatesarerequired.Thisdocumentprovidesmodeltestmethodsfortheshort-termandlong-termmechanical,thermo-mechanical,anddurabilitytestingofFRPbarsandlaminates.Itisanticipatedthatthesemodeltestmethodsmaybeconsidered,modified,andadopted,eitherinwholeorinpart,byaU.S.nationalstandards-writingagencysuchasASTMInternationalorAASHTO.ThepublicationofthesetestmethodsbyACICommittee440isanefforttoaidinthisadoption.Therecommendedtestmethodsarebasedontheknowledgegainedfromresearchresultsandliteratureworldwide.Manyoftheproposedtestmethodsforreinforcingrodsarebasedonthosefoundin“RecommendationforDesignandConstructionofConcreteStructuresusingContinuousFiberReinforcingMaterials”publishedin1997bytheJapanSocietyforCivilEngineers(JSCE).TheJSCEtestmethodshavebeenmodifiedextensivelytoadddetailsandtoadaptthetestmethodstoU.S.practice.Keywords:anchorage;bond;concrete;coupler;creep;fatigue;fiber-reinforcedpolymers(FRP);modulusofelasticity;reinforcedconcrete;shear;splice;stirrup;strength;tendon.TarekAlkhrdajiEdwardR.FyfeVistaspM.KarbhariMorrisSchupackCharlesE.BakisAliGanjehlouJamesG.KorffDavidW.ScottP.N.BalaguruDuaneJ.GeeMichaelW.LeeRajanSenLawrenceC.BankT.RussellGentry†JohnLevarMohsenA.ShahawyAbdeldjelilBelarbiJanosGergelyIbrahimMahfouzCarolK.ShieldBrahimBenmokrane*WilliamJ.GoldHenryN.MarshKhaledA.SoudkiGreggJ.BlaszakNabilF.GraceOrangeS.MarshallRobertE.SteffenTimothyE.BradberryMarkF.GreenAmirMirmiranGamilTadrosGordonL.BrownMarkGreenwoodAymanS.MossallamJayThomasVickiL.BrownDougD.GremelAntonioNanniHoussamA.ToutanjiThomasI.CampbellH.R.HamiltonKennethNealeMiroslavVadovicCharlesW.DolanIssamE.HarikJohnP.NewhookDavidVanderpoolDatDuthinhKentA.HarriesMaxL.PorterMilanVatovecGarthJ.FallisMarkP.HendersonMarkA.PostmaDavidWhiteAmirFamBohdanN.HoreczkoHayderA.RasheedSamiH.RizkallaChairJohnP.BuselSecretary*Chair,Subcommitteethatpreparedthisdocument.†Co-Chair,Subcommitteethatpreparedthisdocument.GuideTestMethodsforFiber-ReinforcedPolymers(FRPs)forReinforcingorStrengtheningConcreteStructuresReportedbyACICommittee440440.3R-2ACICOMMITTEEREPORTCONTENTSPart1—General,p.440.3R-21.1—Introduction1.2—Scope1.3—ExistingASTMtestmethods1.4—Definitions1.5—NotationPart2—TestmethodsforFRPbarsforconcretestructures,p.440.3R-7B.1—Testmethodforcross-sectionalpropertiesofFRPbarsB.2—TestmethodforlongitudinaltensilepropertiesofFRPbarsB.3—TestmethodforbondstrengthofFRPbarsbypullouttestingB.4—TestmethodfortransverseshearstrengthofFRPbarsB.5—TestmethodforstrengthofFRPbentbarsandstirrupsatbendlocationsB.6—AcceleratedtestmethodforalkaliresistanceofFRPbarsB.7—TestmethodfortensilefatigueofFRPbarsB.8—TestmethodforcreepruptureofFRPbarsB.9—Testmethodforlong-termrelaxationofFRPbarsB.10—TestmethodforperformanceofanchoragesofFRPbarsB.11—TestmethodfortensilepropertiesofdeflectedFRPbarsB.12—TestmethodfordeterminingtheeffectofcornerradiusontensilestrengthofFRPbarsPart3—Testmethodsfor