Designation:C583−15StandardTestMethodforModulusofRuptureofRefractoryMaterialsatElevatedTemperatures1ThisstandardisissuedunderthefixeddesignationC583;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversdeterminationofthehigh-temperaturemodulusofruptureofrefractorybrickormono-lithicrefractoriesinanoxidizingatmosphereandunderactionofaforceorstressthatisincreasedataconstantrate.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E220TestMethodforCalibrationofThermocouplesByComparisonTechniques3.SignificanceandUse3.1Measuringthemodulusofruptureofrefractoriesatelevatedtemperatureshasbecomeawidelyacceptedmeanstoevaluatematerialsatservicetemperatures.Manyconsumercompanieshavespecificationsbasedonthistypeoftest.3.2Thistestmethodislimitedtofurnacesoperatingunderoxidizingconditions.However,withmodificationsforatmo-spherecontrolinothertestfurnaces,themajorcriteriaofthistestproceduremaybeemployedwithoutchange.3.3Thistestmethodisdesignedforprogressiveapplicationofaforceorstressonaspecimensupportedasasimplebeamwithcenter-pointloading.Testapparatusdesignedfortheprogressiveapplicationofastrainmayyielddifferentresults,especiallysincerefractorymaterialswillreachasemiplasticstateatelevatedtemperatureswhereHooke’slawdoesnotapply,thatis,stressisthennotproportionaltostrain.3.4Thistestmethodappliestofireddenserefractorybrickandshapes,chemicallybonde...
