Designation:C1042–99StandardTestMethodforBondStrengthofLatexSystemsUsedWithConcreteBySlantShear1ThisstandardisissuedunderthefixeddesignationC1042;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthebondstrengthoflatexbondingsystemsforusewithportland-cementconcrete.Thistestmethodcoversbondinghardenedmortarspecimenstofreshlymixedmortarspecimens.1.2Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents,therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththistestmethod.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregu-latorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:C39TestMethodforCompressiveStrengthofCylindricalConcreteSpecimens2C109/C109MTestMethodforCompressiveStrengthofHydraulicCementMortars(Using2-in.or50-mmCubeSpecimens)3C150SpecificationforPortlandCement3C192PracticeforMakingandCuringConcreteTestSpeci-mensintheLaboratory2C305PracticeforMechanicalMixingofHydraulicCementPastesandMortarsofPlasticConsistency3C617PracticeforCappingCylindricalConcreteSpeci-mens2C1059SpecificationforLatexAgentsforBondingFreshtoHardenedConcrete23.SummaryofTestMethod3.1Thebondstrengthisdeterminedbyusingthelatexsystemtobondafreshmortarsectionofa3by6in.[75by150mm]portland-cementmortarcylindertoahardenedhalfcylinder,thathasadiagonallycastbondingareaatanangle30°fromvertical.Aftersuitablecuringofthecompositespecimen,thebondstressisdeterminedbytestingthespecimenincompressionandcomputingthe...
