EN 13286-7-2004 en Unbound and hydraulically bound mixtures - Part 7 Cyclic load triaxial test for unbound mixtures《松散的和液力粘合的混合料 第7部分 松散混合料用循环装载三轴向试验》.pdf

1、BRITISH STANDARD BS EN 13286-7:2004 Unbound and hydraulically bound mixtures Part 7: Cyclic load triaxial test for unbound mixtures The European Standard EN 13286-7:2004 has the status of a British Standard ICS 93.080.20 BS EN 13286-7:2004 This British Standard was published under the authority of t

2、he Standards Policy and Strategy Committee on 24 February 2004 BSI 24 February 2004 ISBN 0 580 43473 7 National foreword This British Standard is the official English language version of EN 13286-7:2004. The UK participation in its preparation was entrusted by Technical Committee B/510, Road materia

3、ls, to Subcommittee B/510/4, Cementitious bound materials, unbound granular materials, waste materials and marginal materials, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards

4、 which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This pub

5、lication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internati

6、onal/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title

7、 page, pages 2 to 37 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN132867 January2004 ICS93.080.20 Englishversion Unboundand

8、hydraulicallyboundmixturesPart7:Cyclicload triaxialtestforunboundmixtures Gravestraitesauxliantshydrauliquesetgravesnon traitesPartie7:Essaitriaxialsouschargecycliquepour mlangessanslianthydraulique UngebundeneundhydraulischgebundeneGemischeTeil 7:DreiaxialprfungmitzyklischerBelastungfr ungebundeneG

9、emische ThisEuropeanStandardwasapprovedbyCENon14November2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational sta

10、ndardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heo

11、fficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingd

12、om. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN132867:2004:EEN132867:2004(E) 2 Contents Page Foreword

13、. 4 1 Scope . 6 2 Normativereferences . 6 3 Symbolsandabbreviations . 7 4 Principle. 8 4.1 Procedureforthestudyoftheresilientbehaviour .8 4.2 Procedureforthestudyofpermanentdeformations 8 4.3 Multistageprocedure . . 8 5 Apparatus 8 5.1 General. 8 5.2 Triaxialpressurechamber(cell) 9 5.2.1 General. 9

14、5.2.2 Chambermedium 9 5.2.3 Topandbottomplate . 9 5.3 Loadingdevice 9 5.3.1 MethodAVariableconfiningpressure 9 5.3.2 MethodBConstantconfiningpressure . 9 5.4 Pressuretransducers . 10 5.5 Axialloadtransducer . 10 5.6 Responsemeasuringequipment 10 5.7 Otherequipment . 10 5.8 Specimencapandbase . 10 5.

15、9 Porousdiscs 10 5.10 Semipermeablefilters . 11 5.11 Membrane 11 5.12 Specimensizemeasurementdevices 11 5.13 Balance 11 5.14 Testingenvironment . 11 6 Preparation 11 6.1 General. 11 6.2 Setupofspecimenanddeformationmeasuringequipment . 12 7 Testproceduresforthestudyoftheresilientbehaviour . 12 7.1 P

16、rinciple. 12 7.2 MethodA:Variableconfiningpressure. . 12 7.2.1 General. 12 7.2.2 Conditioningofthespecimen . 12 7.2.3 Repeatedloadingforresilienttesting 13 7.3 MethodB:Constantconfiningpressure . . 14 7.3.1 General. 14 7.3.2 Conditioningofthespecimen . 14 7.3.3 Repeatedloadingforresilienttesting 15

17、8 Testproceduresforthestudyofpermanentdeformation . 17 8.1 Principle. 17 8.2 SingleStageloading . 17 8.2.1 General. 17 8.2.2 MethodA:Variableconfiningpressure. . 17 8.2.3 MethodB:Constantconfiningpressure . 17 8.3 Multistageloading . 18EN132867:2004(E) 3 9 Testreport . .19 9.1 General19 9.2 Generald

18、ata .19 9.3 Conditioningofthespecimen 20 9.4 Resilientbehaviour. .20 9.5 Permanentbehaviour(singlestageormultistageloading).20 AnnexA (informative) Measurementofspecimendeformations.21 A.1 MeasurementsystemusingLVDTs .21 A.2 Measurementsystemusinglinearvariabledisplacementtransducersandringswith str

19、aingages. .24 AnnexB (informative) Preparationmethods25 B.1 General25 B.2 Specimenconditions. 25 B.3 Method1Compactionbyvibrocompression 25 B.4 Method2Compactionbyvibratinghammer .26 AnnexC (informative) Guidanceontestproceduresandrankingofmaterials .28 C.1 Purpose.28 C.2 Experimentalstresslevelsfor

20、permanentdeformationtests.28 C.3 Rankingofmaterialsbasedonresilientbehaviourtests28 C.4 Rankingofmaterialsbasedonpermanentdeformationtests29 C.4.1 Procedure .30 C.4.2 Interpretation30 C.4.3 Ranking.31 C.4.4 Application .31 AnnexD (informative) Suggestedtablesforpresentationoftestresults.33 Bibliogra

21、phy36EN132867:2004(E) 4 Foreword Thisdocument(EN132867:2004)hasbeenpreparedbyTechnicalCommitteeCEN/TC 227“Road materials”,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyJuly2004,andconfl

22、ictingnationalstandardsshallbewithdrawnatthe latestbyJuly2004. AnnexesA,B,CandDareinformative. ThisEuropeanStandardisoneofaseriesofstandardsaslistedbelow. EN132861, UnboundandhydraulicallyboundmixturesPart1:Testmethodsforlaboratoryreference densityandwatercontentIntroduction,generalrequirements ands

23、ampling. prEN132862, UnboundandhydraulicallyboundmixturesPart2:Testmethodforthedeterminationofthe laboratoryreferencedensityandwatercontentProctorcompaction . EN132863, UnboundandhydraulicallyboundmixturesPart3:Testmethodsforlaboratoryreference densityandwatercontentVibrocompressionwithcontrolledpar

24、ameters . EN132864, UnboundandhydraulicallyboundmixturesPart4:Testmethodsforlaboratoryreference densityandwatercontentVibratinghammer . EN132865, UnboundandhydraulicallyboundmixturesPart5:Testmethodsforlaboratoryreference densityandwatercontentVibratingtable . EN132867, Unboundandhydraulicallyboundm

25、ixturesTestmethodsPart7:Cyclicloadtriaxialtestfor unboundmixtures. EN1328640, UnboundandhydraulicallyboundmixturesPart40:Testmethodforthedeterminationofthe directtensilestrengthofhydraulicallyboundmixtures . EN1328641, UnboundandhydraulicallyboundmixturesPart41:Testmethodforthedeterminationofthe com

26、pressivestrengthofhydraulicallyboundmixtures . EN1328642, UnboundandhydraulicallyboundmixturesPart42:Testmethodforthedeterminationofthe indirecttensilestrengthofhydraulicallyboundmixtures. EN1328643, UnboundandhydraulicallyboundmixturesPart43:Testmethodforthedeterminationofthe modulusofelasticityofh

27、ydraulicallyboundmixtures . EN1328644, UnboundandhydraulicallyboundmixturesPart44:Testmethodforthedeterminationofthe alphacoefficientofvitrifiedblastfurnaceslag . prEN1328645, UnboundandhydraulicallyboundmixturesPart45:Testmethodforthedeterminationof theworkabilityperiodofhydraulicallyboundmixtures.

28、 EN1328646, UnboundandhydraulicallyboundmixturesPart46:Testmethodforthedeterminationofthe moistureconditionvalue. EN1328647, UnboundandhydraulicallyboundmixturesPart47:Testmethodforthedeterminationofthe Californiabearingratio,immediatebearingindexandlinearswelling .EN132867:2004(E) 5 prEN1328648, Un

29、boundandhydraulicallyboundmixturesPart48:Testmethodforthedeterminationof thedegreeofpulverisation. prEN1328649, UnboundandhydraulicallyboundmixturesPart49:Acceleratedswellingtestofsoil treatedbylimeand/orhydraulicbinder . prEN1328650, UnboundandhydraulicallyboundmixturesPart50:Methodsformakingtestsp

30、ecimens usingproctorequipmentorvibratingtablecompaction. prEN1328651, UnboundandhydraulicallyboundmixturesPart51:Methodsformakingtestspecimensby vibratinghammercompaction. prEN1328652, UnboundandhydraulicallyboundmixturesMethodsformakingtestspecimensPart52: Makingspecimensbyvibrocompression. prEN132

31、8653, UnboundandhydraulicallyboundmixturesMethodsformakingtestspecimensPart53: Makingcylindricalspecimensbyaxialcompression AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Cyprus,CzechRepubl

32、ic, Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania, Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,Switzerland andUnitedKingdom.EN132867:2004(E) 6 1Scope ThisEuropeanStandardspecifiestestproceduresfordeterminingtheresi

33、lientandpermanentbehaviourof unboundmixturesunderconditionsthatsimulatethephysicalconditionsandstressstatesofthesematerials inpavementlayerssubjectedtomovingloads.Theseproceduresallowtodeterminemechanicalproperties thatcanbeusedforperformancerankingofmaterialsandforcalculatingthestructuralresponseso

34、f pavementstructures. Thetestisapplicabletocylindricalspecimensofunboundmixturespreparedbylaboratorycompaction,with anabsolutemaximumparticlesizesmallerthanonefifthofthespecimendiameter. Fortheloadingofthespecimen,twomethodsareprovided: MethodA:TheVariableConfiningPressuremethodinwhichthecellpressur

35、eiscycledinphasewiththe axialload. MethodB:TheConstantConfiningPressuremethodinwhichonlycyclicaxialloadingandconstant confiningpressureareperformed. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications. Thesenormativereferencesarecitedatthea

36、ppropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies(includingamendme

37、nts). EN13285, UnboundmixturesSpecification .EN132867:2004(E) 7 3 Symbolsandabbreviations ForthepurposesofthisEuropeanStandard,thesymbolsanddefinitionsinTable1 apply. Table1Symbolsanddefinitions Symbol Definition Unit w Watercontent % r d Drydensity Mg/m 3 N Numberofloadcycles s Normalstress kPa s 1

38、 Totalaxialstress(majorprincipalstress) kPa s 1min, s 1max Minimumandmaximumvaluesof s 1 duringoneloadcycle kPa s 1 r Resilientaxialstress, s 1 r = s 1max s 1min kPa s 3 Totalradialstress;i.e.theappliedconfiningpressureinthetriaxialchamberorthe vacuuminsidethespecimenwhennotriaxialchamberisused(mino

39、rand intermediateprincipalstress) kPa s 3min, s 3max Minimumandmaximumvaluesof s 3 duringoneloadcycle kPa s 3 r Resilientradialstress, s 3 r = s 3max s 3min kPa s d Deviatorstress, s d = s 1 s 3 kPa L 0 Gaugelengthforaxialdisplacement,immediatelyfollowingspecimenpreparation mm R 0 Gaugelengthforradi

40、aldisplacement,immediatelyfollowingspecimenpreparation mm L p (N) Permanentaxialdisplacementatcycle N,definedasthedisplacement accumulatedduringtheapplicationofasinglestresscombination,fromthe beginningofthefirstcycletotheendofcycle N mm R p (N) Permanentradialdisplacementatcycle N,definedasthedispl

41、acement accumulatedduringtheapplicationofasinglestresscombination,fromthe beginningofthefirstcycletotheendofcycle N mm L r (N) Resilientaxialdisplacementatcycle N,definedasthedisplacementduringthe unloadingpartofthecycle(betweenthepointwheretheappliedstressesare maximumandtheendofthecycle) mm R r (N

42、) Resilientradialdisplacementatcycle N,definedasthedisplacementduringthe unloadingpartofthecycle mm e 1 r Resilientorrecoveredaxialstrain. Atcycle N, e 1 r (N)= L r (N)/ L 0 10 3 e 1 p Permanentaxialstrain. Atcycle N, e 1 p (N)= L p (N)/ L 0 10 3 e 3 r Resilientorrecoveredradialstrain. Atcycle N, e

43、3 r (N)= R r (N)/ R 0 10 3 e 3 p Permanentradialstrain. Atcycle N, e 3 p (N)= R p (N)/ R 0 10 3 E r Resilientmodulus, r r r r r r 1 r r r r r 3 3 1 3 1 3 3 1 1 2 2 2 2 e s e s e s s s s s - + - + = E When s 3 r =0,(constantconfiningpressure): r r r 1 1 e s = E MPa NOTE Compressivestressesandstrainsa

44、repositive.EN132867:2004(E) 8 4Principle Thecyclictriaxialtestconsistsofimposing,onacylindricalspecimenofunboundgranularmaterial,cyclic stressesthatreproducethestressrangeinanunboundpavementlayer,andinmeasuringtheaxialandradial strainsofthespecimeninducedbythisloading.InmethodA(VariableConfiningPressure),acyclicaxial deviatorstressandavariable(cyclic)confiningcellpressure,varyinginphase,are