ISO 15630-3 2025.docx

InternationalStandardISO15630-3Fourthedition2025-06Steelforthereinforcementandprestressingofconcrete一TestmethodsPart3:PrestressingsteelAcierspourarmatureetlaprecontraintedubetonMethodesd'essai一Partie3:AciersdeprecontrainteReferencenumberISO15630-3:2025(en)COPYRIGHTPROTECTEDDOCUMENT©ISO2025Allrightsreserved.Unlessotherwisespecified,orrequiredinthecontextofitsimplementation,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO,smemberbodyinthecountryoftherequester.ISOcopyrightofficeCP401Ch.deBlandonnet8CH-1214Vernier,GenevaPhone:+41227490111Email:copyrightiso.orgWebsite:www.iso.orgPublishedinSwitzerlandContentsPageForewordviIntroductionvii1 Scope12 Normativereferences13 Terms,definitionsandsymbols13.1 Termsanddefinitions13.2 Symbols24 Generalprovisionsconcerningtestpieces35 Tensiletest45.1 Testpiece45.2 Testequipment45.3 Testprocedure45.3.1 General45.3.2 Determinationofthemodulusofelasticity56 Bendtest66.1 Testpiece66.2 Testequipment66.3 Testprocedure66.4 Interpretationoftestresults67 Reversebendtest77.1 Testpiece77.2 Testequipment77.3 Testprocedure88 Wrappingtest88.1 Testpiece88.2 Testequipment88.3 Testprocedure89 Isothermalstressrelaxationtest89.1 Principleoftest89.2 Testpiece99.3 Testequipment99.3.1 Frame99.3.2 Force-measuringdevice99.3.3 Length-measuringdevice(extensometer)109.3.4 Anchoringdevice109.3.5 Loadingdevice109.4 Testprocedure109.4.1 Provisionsconcerningthetestpiece109.4.2 Applicationofforce109.4.3 Initialforce119.4.4 Forceduringthetest119.4.5 Maintenanceofstrain119.4.6 Temperature119.4.7 Frequencyofforcerecording129.4.8 Frequencyofstrainrecording129.4.9 Durationofthetest1210 Axialforcefatiguetest.1210.1 Principleoftest1210.2 Testpiece1310.3 Testequipment1310.4 Testprocedure1310.4.1 Provisionsconcerningthetestpiece1310.4.2 Stabilityofforceandfrequency1310.4.3 Countingofforcecycles1410.4.4 Frequency1410.4.5 Temperature1410.4.6 Validityofthetest1411 Stresscorrosiontestinasolutionofthiocyanate1411.1 Principleoftest1411.2 Sampleandtestpiece1411.3 Testequipment1411.3.1 Frame1411.3.2 Force-measuringdevice1411.3.3 Time-measuringdevice1511.3.4 Testcellcontainingthetestsolution1511.3.5 Testsolution1511.4 Testprocedure1511.4.1 Provisionsconcerningthetestpieces1511.4.2 Applicationandmaintenanceofferee1611.4.3 Fillingofthetestcell1611.4.4 Temperatureduringthetest1611.4.5 Terminationofthetest1611.4.6 Determinationofmedianlifetimetofracture1612 Deflectedtensiletest1612.1 Principleoftest1612.2 Sampleandtestpieces1612.3 Testequipment1712.3.1 Generaldescription1712.3.2 Dimensions1712.3.3 Anchorages1712.3.4 Mandrel1812.3.5 Loadingdevice1912.4 Testprocedure1913 Chemicalanalysis2014 Measurementofthegeometricalcharacteristics2014.1 Testpiece2014.2 Testequipment2014.3 Testprocedures2014.3.1 Ribmeasurements2014.3.2 Indentationmeasurements2114.3.3 Laylengthofstrand(P)2214.3.4 Straightness2215 Determinationoftherelativeribarea(ZiR)2215.1 General2215.2 Calculationof/R2315.2.1 Relativeribarea2315.2.2 Simplifiedformulae2315.2.3 FormulausedforthecalculationoffR2416 Determinationofdeviationfromnominalmasspermetre2416.1 Testpiece2416.2 Accuracyofmeasurement2416.3 Testprocedure2517 Testreport25Annex A (informative)Optionsforagreementbetweenthepartiesinvolved26Annex B (informative)Stresscorrosiontestinthiocyanatesolutionwithgalvanostaticcurrent27Annex C (informative)Stresscorrosiontestindistilledwater.33Bibliography38ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seeWWW.iso.org/directives).ISOdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).ISOtakesnopositionconcerningtheevidenc