Designation:A944−10(Reapproved2015)StandardTestMethodforComparingBondStrengthofSteelReinforcingBarstoConcreteUsingBeam-EndSpecimens1ThisstandardisissuedunderthefixeddesignationA944;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddescribesprocedurestoestablishtherelativebondstrengthofsteelreinforcingbarsinconcrete.1.2Thistestmethodisintendedtodeterminetheeffectsofsurfacepreparationorcondition(suchasbarcoatings)onthebondstrengthofdeformedsteelreinforcingbars(ofsizesrangingfromNo.10toNo.36[No.3toNo.11])toconcrete.1.3Thebondstrengthsobtainedusingthistestmethodarenotdirectlyapplicabletothedesignofreinforcedconcretemembers.NOTE1—Thebondstrengthsobtainedusingthistestmethodaregenerallyhigherthanobtainedindevelopmentorsplicetestsusingbeamswiththesameembedmentlengths.Theresultsobtainedusingthistestmethodshouldonlybeusedforcomparisonswithresultsforotherreinforcingbarstestedusingthismethod.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninbracketsaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A775/A775MSpecificationforEpoxy-CoatedSteelRein-forcingBarsC192/C192MPracticeforMakingandCuringConcreteTestSpecimensintheLaboratoryE4PracticesforForceVerificationofTestingMachinesE575PracticeforReportingDatafromStructuralTestsofBuildingConstructions,Elements,Connections,andAs-semblies3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1bondstrength,n—maximummeasuredloadinaten-silebondtestofasteel...
