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1、Designation:C531?00(Reapproved2012)StardTestMethodfLinearShrinkageCoefficientofThermalExpansionofChemicalResistantMtarsGroutsMonolithicSurfacingsPolymerConcretes1ThisstardisissuedunderthefixeddesignationC531thenumberimme

2、diatelyfollowingthedesignationindicatestheyearofiginaladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapp

3、roval.ThisstardhasbeenapprovedfusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thistestmethodcoversthemeasurementofthelinearshrinkageduringsettingcuringthecoefficientofthermalexpansionofchemicalresistantmtarsgroutsmonoli

4、thicsurfacingspolymerconcretes.1.2Abarofsquarecrosssectioniscasttoaprescribedlengthinamoldthatholdsmeasuringstudsthatarecapturedintheendsofthefinishedcasting.1.2.1Thechangeinlengthaftercuringismeasuredusedtocalculateshri

5、nkage.NOTE1—Shrinkagedeterminationsshouldnotbemadeonsulfurmtarssincethistestmethodcannottrulyreflecttheoveralllinearshrinkageofasulfurmtar.1.2.2Thechangeinlengthataspecificelevatedtemperatureismeasuredusedtocalculatethec

6、oefficientofthermalexpansion.1.3Thistestmethodislimitedtomaterialswithaggregatesizeof0.25in.(6mm)less.1.4Thevaluesstatedininchpoundunitsaretoberegardedasstard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunit

7、sthatareprovidedfinfmationonlyarenotconsideredstard.1.5Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdet

8、erminetheapplicabilityofregulatylimitationspritouse.2.ReferencedDocuments2.1ASTMStards:2C287SpecificationfChemicalResistantSulfurMtarC490PracticefUseofApparatusftheDeterminationofLengthChangeofHardenedCementPasteMtarConc

9、reteC904TerminologyRelatingtoChemicalResistantNonmetallicMaterials3.Terminology3.1Definitions—FdefinitionsoftermsusedinthistestmethodseeTerminologyC904.4.SignificanceUse4.1Thistestmethodoffersameansofcomparingtherelative

10、linearshrinkagecoefficientofthermalexpansion.4.1.1Thematerialtobetestedisplacedinthemoldinafluidplasticstate.Asthematerialmakesatransitiontoasolidstateitadherestocapturestheendstuds.4.1.2Thelinearshrinkagemeasuredisthech

11、angeinlengththatoccursafterthematerialisrigidenoughstrongenoughtomovethestuds.4.2Thistestmethodcanbeusedfresearchpurposestoprovideinfmationonlinearchangestakingplaceinthetestmaterials.Otherdimensionalchangesmayoccurthatd

12、onotmanifestthemselvesaschangesinlength.5.Apparatus5.1WeighingEquipmentshallbecapableofweighingmaterialsspecimensto60.3%accuracy.1ThistestmethodisunderthejurisdictionofASTMCommitteeD01onPaintRelatedCoatingsMaterialsAppli

13、cationsisthedirectresponsibilityofSubcommitteeD01.46onIndustrialProtectiveCoatings.CurrenteditionapprovedAug.12012.PublishedSeptember2012.iginallyapprovedin1963.Lastpreviouseditionapprovedin2005asC531–00(2005).DOI:10.152

14、0C053100R12.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.Copyright?ASTMInternational100BarrHar

15、bDrivePOBoxC700WestConshohockenPA194282959.UnitedStates1specimensintoadesiccatfcoolingimmediatelyafterthereadingistakenattheelevatedtemperature.NOTE3—Usuallythelengthcanbereadwithin45safterremovalfromtheoven.9.3.1Ifthesp

16、ecimendoesnotreturntoitsiginallengthoncoolingto73Fshrinkageisstilltakingplacetheprocedurein9.19.2shallberepeated.10.Calculation10.1Shrinkage—Calculatethelinearshrinkagefthefourspecimensasfollows:Percentshrinkage5@~L02L!L

17、0#3100(1)where:L0=iginallength(lengthofstardbar)in.(mm)L=lengthasmeasuredduringaftercurein.(mm)excludingstuds.10.2LinearCoeff?cientofThermalExpansion—CalculatethelinearcoefficientofthermalexpansionperF(C)Cofthefourspecim

18、ensasfollows:C5~Z2Y2W!T~W2X!(2)where:Z=lengthofbarincludingstudsatelevatedtemperaturein.(mm)Y=lengthofstudexpansionin.(mm)=XTk(wherekisthelinearcoefficientofthermalexpansionperF(C)ofthestuds)W=lengthofbarincludingstudsat

19、lowertemperaturein.(mm)T=temperaturechangeF(C)X=lengthofthetwostudsatlowertemperaturein.(mm).11.Rept11.1Reptthefollowinginfmation:11.1.1Manufacturer’snameofthematerialgenerictype11.1.2Mixingratio11.1.3Conditioningprocedu

20、re11.1.4Testconditions(temperaturehuity)11.1.5Totaldurationoftestindaysincludingheatcycles11.1.6Individualaveragedresultsoflinearshrinkagecoefficientofthermalexpansion.12.Precision12.1Theprecisionofthistestmethodhasnotye

21、tbeenestablished.13.Keywds13.1brickmtarsgroutslinearshrinkagemonolithicsurfacingsmtarspolymerconcretesthermalexpansiontilegroutsASTMInternationaltakesnopositionrespectingthevalidityofanypatentrightsassertedinconnectionwi

22、thanyitemmentionedinthisstard.Usersofthisstardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrightstheriskofinfringementofsuchrightsareentirelytheirownresponsibility.Thisstardissubjecttorevisionatanytime

23、bytheresponsibletechnicalcommitteemustbereviewedeveryfiveyearsifnotrevisedeitherreapprovedwithdrawn.YourcommentsareinvitedeitherfrevisionofthisstardfadditionalstardsshouldbeaddressedtoASTMInternationalHeadquarters.Yourco

24、mmentswillreceivecarefulconsiderationatameetingoftheresponsibletechnicalcommitteewhichyoumayattend.IfyoufeelthatyourcommentshavenotreceivedafairhearingyoushouldmakeyourviewsknowntotheASTMCommitteeonStardsattheaddressshow

25、nbelow.ThisstardiscopyrightedbyASTMInternational100BarrHarbDrivePOBoxC700WestConshohockenPA194282959UnitedStates.Individualreprints(singlemultiplecopies)ofthisstardmaybeobtainedbycontactingASTMattheaboveaddressat61083295

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