Designation:C1072−13´1StandardTestMethodsforMeasurementofMasonryFlexuralBondStrength1ThisstandardisissuedunderthefixeddesignationC1072;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.ε1NOTE—EditoriallycorrectedTableX1.1inMarch2014.1.Scope*1.1Thesetestmethodsevaluatetheflexuralbondstrength,normaltothebedjoints,ofmasonrybuiltofmanufacturedmasonryunits.Samplingandtestingproceduresarereferenced,andtermsaredefined.Threedifferentspecimenfabricationmethodsarespecified,eachforadifferentpurpose:1.1.1Thefirstmethodisthe“TestMethodforLaboratory-PreparedSpecimens.”Itspurposeistocomparethebondstrengths(underthegivenconditions)ofmasonrymortars.Itcouldbeused,forexample,tocheckthequalityofmortarproductsafterproduction,ortoindicatethebondstrength(underthegivenconditions)ofamortarproductwithoutrequiringtheproducttobetestedincombinationwithmanydifferentunits.Itisnotintendedtorepresentfieldconditions.Itusesstandardconcretemasonryunits.Mortarsarebatchedbyweightequivalentsofvolumeproportionsandaremixedtoaprescribedflow.Prismsareconstructedusingajigandarebag-cured.1.1.2Thesecondmethodisthe“TestMethodforField-PreparedSpecimens.”Itspurposeistoevaluatethebondstrength(underthegivenconditions)ofaparticularunit-mortarcombination,eitherforpreconstructionevaluationofmaterialsorforqualitycontrolpurposesduringconstruction.Mortarsarebatchedconventionally,andtheflowisnotprescribed.Prismsareconstructedconventionally(nojig)andarebag-cured.1.1.3Thethirdmethodisthe“TestMethodforPrismsRemovedfromExistingMasonry.”Itspurposeistoevaluatethebondstrengthofunit-mortarcombinationsofprismscutfromexistingwalls.1.1.4Thethreemethodsarenotconsistent,noraretheyintendedtobe.Theyareintendedtobeusedforthreedifferentpurposes.Tomaketh...
