【astm標(biāo)準(zhǔn)】c 133 - 97 (2015)

1、Designation:C133?97(Reapproved2015)StardTestMethodsfColdCrushingStrengthModulusofRuptureofRefracties1ThisstardisissuedunderthefixeddesignationC133thenumberimmediatelyfollowingthedesignationindicatestheyearofiginaladoptio

2、ninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.ThisstardhasbeenapprovedfusebyagenciesoftheU.S.Departme

3、ntofDefense.1.Scope1.1Thesetestmethodscoverthedeterminationofthecoldcrushingstrengththemodulusofrupture(M)ofdriedfiredrefractyshapesofalltypes.1.2Thetestmethodsappearinthefollowingsections:TestMethodSectionsColdCrushingS

4、trength4to9ModulusofRupture10to151.3Thevaluesstatedininchpoundunitsaretoberegardedasstard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedfinfmationonlyarenotconsideredstard.1.4Thisstarddoesn

5、otpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitationspritouse.2.ReferencedDocum

6、ents2.1ASTMStards:2C862PracticefPreparingRefractyConcreteSpecimensbyCastingC1054PracticefPressingDryingRefractyPlasticRammingMixSpecimensE4PracticesfFceVerificationofTestingMachines3.SignificanceUse3.1Thecoldstrengthofar

7、efractymaterialisanindicationofitssuitabilityfuseinrefractyconstruction.(Itisnotameasureofperfmanceatelevatedtemperatures.)3.2Thesetestmethodsarefdeterminingtheroomtemperatureflexuralstrengthin3pointbending(coldmodulusof

8、rupture)compressivestrength(coldcrushingstrength)bothfallrefractyproducts.3.3Considerablecaremustbeusedtocomparetheresultsofdifferentdeterminationsofthecoldcrushingstrengthmodulusofrupture.Thespecimensizeshapethenatureof

9、thespecimenfaces(thatisasfmedsawedground)theientationofthosefacesduringtestingtheloadinggeometrytherateofloadapplicationmayallsignificantlyaffectthenumericalresultsobtained.Comparisonsoftheresultsbetweendifferentdetermin

10、ationsshouldnotbemadeifonemeoftheseparametersdifferbetweenthetwodeterminations.3.4Therelativeratioofthelargestgrainsizetothesmallestspecimendimensionmaysignificantlyaffectthenumericalresults.Fexamplesmallercutspecimensco

11、ntaininglargegrainsmaypresentdifferentresultsthanthebricksfromwhichtheywerecut.Undernocircumstancesshould6by1by1in.(152by25by25mm)specimensbepreparedtestedfmaterialscontaininggrainswithamaximumgraindimensionexceeding0.25

12、in.(6.4mm).3.5Thistestmethodisusefulfresearchdevelopmentengineeringapplicationdesignmanufacturingprocesscontrolfdevelopingpurchasingspecifications.COLDCRUSHINGSTRENGTH4.Apparatus4.1TestingMachine—Anyfmofstardmechanicalhy

13、drauliccompressiontestingmachineconfmingtotherequirementsofPracticesE4maybeused.NOTE1—Flowstrengthmaterials(suchasinsulatingbrickscastables)asensitivityof20lbf(67kN)lessisrequired.Theuseofahydraulictestingmachineisalsopr

14、eferredoverthemechanicaltypefthesematerials.4.2SphericalBearingBlock—Theplanesurfaceofthesphericalbearingblock(seeFig.1)shallhaveanareawhichisequaltogreaterthanthecrosssectionofthetestspecimen.1Thesetestmethodsareunderth

15、ejurisdictionofASTMCommitteeC08onRefractiesarethedirectresponsibilityofSubcommitteeC08.01onStrength.CurrenteditionapprovedMarch12015.PublishedMay2015.iginallyapprovedin1937.Lastpreviouseditionapprovedin2008asC133–97(2008

16、)ε1.DOI:10.1520C013397R15.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.Copyright?ASTMInternati

17、onal100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates1where:S=coldcrushingstrengthlbfin.2(MPa)W=totalmaximumloadindicatedbythetestingmachinelbf(N)A=averageoftheareasofthetopbottomofthespecimenperpendicula

18、rtothelineofapplicationoftheloadin.2(mm2).8.Rept8.1Reptthefollowing:8.1.1Designationofthematerialstested(thatismanufacturerbrdeionlotnumberetc.)8.1.2Specimenconfigurationincludingsizeshapelocationintheiginalbrickshapethe

19、acterofthefaces(thatiscutdrilledaspressedascastetc.)thespecimenientationduringtesting8.1.3Pretreatmentifanygiventothetestpieces(fexamplecuringfiringcokingetc.)8.1.4Numberofspecimensinasample8.1.5Individualspecimendimensi

20、onsthemaximumappliedloadthecalculatedcoldcrushingstrengthfeachspecimen(see7.1)8.1.6Meancoldcrushingstrengthstarddeviationfeachsample.MODULUSOFRUPTURE9.Apparatus9.1TestingMachine—Anyfmofstardmechanicalhydrauliccompression

21、testingmachineconfmingtotherequirementsofPracticesE4maybeused.NOTE4—Properlycalibratedptableapparatusmaybeused.9.2BearingSurfacesthatshallhavearadiusofcurvatureof5?8in.(16mm)becylindricalpieces11?4in.(32mm)indiameter.F6b

22、y1by1in.(152by25by25mm)specimenstheradiusofcurvatureshallbe3?16in.(5mm)cylindricalpieces3?8in.(10mm)indiameter.Allsuchbearingsurfacesshallbestraightofalengthatleastequaltothewidthofthetestspecimen.Thesupptingmembersfthel

23、owerbearingsurfacesshallbeconstructedsoastoprovideameansfthealignmentofthebearingsurfaceswiththeundersurfaceofthetestspecimenbecausethetestbrickmayhavealongitudinaltwist.ApparatusofthedesignshowninFig.2isrecommendedaltho

24、ughothertypesmaybeusedprovidedtheyconfmtotheserequirements.AsatisfactyalternativedesignisshowninFig.3.10.TestSpecimens10.1BrickShapes(bulkdensitygreaterthan100lbft3(1.60gcm3)—Thepreferredtestspecimensshallbestard9by41?2b

25、y21?23in.(228by114by6476mm)bricksspecimensofequivalentsizegroundcutfromrefractyshapes.Inthecaseofspecialshapesonlyonespecimenshallbecutfromasingleshape.Asmanyiginalsurfacesaspossibleshallbepreserved.Wherebricksizesareimp

26、ossibleimpracticablealternativespecimensizesof9by2by2in.(228by51by51mm)6by1by1in.(152by25by25mm)maybeprepared.Inpreparingspecimensfromirregularlargershapesanymethodinvolvingtheuseofabrasivessuchasahighspeedabrasionwheelr

27、ubbingbedthatwillproduceaspecimenwithapproximatelyplaneparallelsideswithoutweakeningthestructuremaybeused.10.2InsulatingBrickShapes(typicalbulkdensityof100lbft3(1.60gcm3)totalpositygreaterthan45%both)—Thetestspecimenssha

28、llbewholebrickmeasuring9by41?2by21?23in.(228by114by6476mm)specimensofequivalentsizecutfromlargershapes.10.3CastableRefracties—Thetestspecimensshallbe9by2by2in.(228by51by51mm)barspreparedbycastinggunning.Thetopbottomthesi

29、defacesrespectivelyshallbeapproximatelyparallelplanes.Allsamplesmustbedriedat220to230F(105to110C)f18h(overnight).UponremovalfromtheovenallowthesampleTABLE1StardLoadingRatesfColdCrushingStrengthRefractyTypeSizein.(mm)Load

30、edCrossSectionin.(mm)LoadedAreain.2mm2)StressRatelbfin.2min(MPamin)LoadingRatelbfmin(kNmin)StrainRateAin.min(mmmin)RefractyBrickShapesDensity100lbft3(1.60gmcm3)45%trueposityboth4.54.52.5CD(11411464)4.54.5(114114)20.25(13

31、064)435(3)8809(39)0.05(1.3)(Includesdriedunfiredplasticrammedrefracties)4.54.53CD(11411476)4.54.5(114114)20.25(13064)435(3)8809(39)0.05(1.3)222DE(515151)22(5151)4(2601)435(3)1740(7.80)0.05(1.3)2diameter2E2diameter3.14435

32、13670.05(51diameter51)(51diameter)(2027)(3)(6.08)(1.3)AWherepossibleloadingataconstantstressrateispreferabletoconstantstrainrateloading.BFdenserefractybrickshapesrequiringmethana3mintestdurationspecimensmaybeloadedtooneh

33、alfoftheanticipatedfracturestrengthatanyconvenientrateexceedingthatspecified.CThesesizesarepreferredfinsulatingfirebricks.DThesepiecesmaybecutfrombrokenhalvesofMspecimens.EThesesizesarepreferredfinsulatingcastables.C133?