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ASTM C1202标准

时间:2013-5-4 11:21:07 作者:boyyangyuanyi 来源:AS 阅读:3000次
ASTM C1202标准
Designation:C1202–05
StandardTestMethodfor
ElectricalIndicationofConcrete’sAbilitytoResistChloride
IonPenetration1
ThisstandardisissuedunderthefixeddesignationC1202;thenumberimmediatelyfollowingthedesignationindicatestheyearof
originaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.A
superscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.
1.Scope
1.1Thistestmethodcoversthedeterminationoftheelec-
tricalconductanceofconcretetoprovidearapidindicationof
itsresistancetothepenetrationofchlorideions.Thistest
methodisapplicabletotypesofconcretewherecorrelations
havebeenestablishedbetweenthistestprocedureandlong-
termchloridepondingproceduressuchasthosedescribedin
AASHTO T259.Examplesofsuchcorrelationsarediscussed
inRefs 1-5.
2
1.2Thevaluesstatedininch-poundunitsaretoberegarded
asthestandard,exceptwhereSIunitsaregivenfirstfollowed
byinch-poundunitsinparentheses.Thevaluesgivenin
parenthesesareforinformationonly.
1.3 Thisstandarddoesnotpurporttoaddressallofthe
safetyconcerns,ifany,associatedwithitsuse.Itisthe
responsibilityoftheuserofthisstandardtoestablishappro-
priatesafetyandhealthpracticesanddeterminetheapplica-
bilityofregulatorylimitationspriortouse.
2.ReferencedDocuments
2.1 ASTMStandards:
3
C42/C42M TestMethodforObtainingandTestingDrilled
CoresandSawedBeamsofConcrete
C192/C192M PracticeforMakingandCuringConcrete
TestSpecimensintheLaboratory
C670 PracticeforPreparingPrecisionandBiasStatements
forTestMethodsforConstructionMaterials
2.2 AASHTOStandard:
T259 MethodofTestforResistanceofConcretetoChlo-
rideIonPenetration4
3.SummaryofTestMethod
3.1Thistestmethodconsistsofmonitoringtheamountof
electricalcurrentpassedthrough2-in.(51-mm)thickslicesof
4-in.(102-mm)nominaldiametercoresorcylindersduringa
6-hperiod.Apotentialdifferenceof60Vdcismaintained
acrosstheendsofthespecimen,oneofwhichisimmersedin
asodiumchloridesolution,theotherinasodiumhydroxide
solution.Thetotalchargepassed,incoulombs,hasbeenfound
toberelatedtotheresistanceofthespecimentochlorideion
penetration.3000
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