Designation:C1171−16StandardTestMethodforQuantitativelyMeasuringtheEffectofThermalShockandThermalCyclingonRefractories1ThisstandardisissuedunderthefixeddesignationC1171;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisusedfordeterminingthestrengthlossorreductionincontinuity,orboth,ofprism-shapedspecimenswhicharecutfromrefractorybrickorshapesandsubjectedtothermalcycling.1.2Thestrengthlossismeasuredbythedifferenceinmodulusofrupture(MOR)betweenuncycledspecimensandthespecimenssubjectedtothermalcycling.1.3Thereductioninstructuralcontinuityisestimatedbythedifferenceinsonicvelocitybeforeandafterthermalcycling.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C133TestMethodsforColdCrushingStrengthandModu-lusofRuptureofRefractoriesC607PracticeforCokingLargeShapesofCarbon-BearingMaterialsC1419TestMethodforSonicVelocityinRefractoryMate-rialsatRoomTemperatureandItsUseinObtaininganApproximateYoung’sModulusE4PracticesforForceVerificationofTestingMachinesE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.SignificanceandUse3.1Thistestmethodindicatestheabilityofarefractoryproducttowithstandthestressgeneratedbysuddenchangesintemperature.3.2Becausetherecommendedfurnacetemperatureofthiscyclingtestis1200°C(2190°F),thistestmethodmaynotindicatetheabilityofarefractoryproducttowithstandcyclingathigherorlowertemper...
