1、BRITISH STANDARD BS EN 13286-42:2003 Unbound and hydraulically bound mixtures Part 42: Test method for the determination of the indirect tensile strength of hydraulically bound mixtures The European Standard EN 13286-42:2003 has the status of a British Standard ICS 93.080.20 BS EN 13286-42:2003 This
2、 British Standard was published under the authority of the Standards Policy and Strategy Committee on 18 March 2003 BSI 18 March 2003 ISBN 0 580 41415 9 National foreword This British Standard is the official English language version of EN 13286-42:2003. The UK participation in its preparation was e
3、ntrusted by Technical Committee B/510, Road materials, to Subcommittee B/510/4, Cementitious bound 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 which implement
4、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 publication does not
5、 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 international/European com
6、mittee 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 page, pages 2 to
7、 8, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN1328642 March2003 ICS93.080.20 Englishversion Unboundan
8、dhydraulicallyboundmixturesPart42:Test methodforthedeterminationoftheindirecttensilestrengthof hydraulicallyboundmixtures Mlangestraitsetmlangesnontraitsauxliants hydrauliquePartie42:Mthodedessaipourla dterminationdelarsistancelatractionindirectedes mlangestraitsauxliantshydrauliques Ungebundeneundh
9、ydraulischgebundeneGemischeTeil 42:PrfverfahrenzurBestimmungderZugfestigkeit hydraulischgebundenenGemischenimindirekten Zugversuch ThisEuropeanStandardwasapprovedbyCENon29November2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an St
10、andardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebyt
11、ra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Nether
12、lands,Norway,Portugal,SlovakRepublic,Spain,Sweden,Switzerland and UnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnat
13、ionalMembers. Ref.No.EN1328642:2003EEN1328642:2003(E) 2 Contents page Foreword3 1 Scope 5 2 Normativereferences 5 3 Termsanddefinitions. .5 4 Principle5 5 Apparatus .6 6 Testspecimens 7 6.1 Manufactureoftestspecimen 7 6.2 Shapeanddimension. .7 7 Testprocedure .7 7.1 Preparationofthetestspecimenprior
14、totest 7 7.1.1 Dimensions.7 7.1.2 Mass 7 7.1.3 Parallelismtoleranceofthegeneratrix. .7 7.2 Specimenpositioning 7 7.3 Loading .7 7.4 Datarecording 7 8 Expressionofresult 7 9 Testreport . .8EN1328642:2003(E) 3 Foreword Thisdocument(EN1328642:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC227“Roadmateri
15、als“, thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbySeptember2003,andconflictingnationalstandardsshallbewithdrawnatthe latestbyDecember2004. ThisEuropeanStandardisoneofaseriesofstandard
16、saslistedbelow. EN132861, UnboundandhydraulicallyboundmixturesPart1:Testmethodsforlaboratoryreferencedensity andwatercontentIntroduction,generalrequirementsandsampling . prEN132862, UnboundandhydraulicallyboundmixturesPart2:Testmethodsforlaboratoryreferencedensity andwatercontentProctorcompaction. E
17、N132863, UnboundandhydraulicallyboundmixturesPart3:Testmethodsforlaboratoryreferencedensity andwatercontentVibrocompressionwithcontrolledparameters. EN132864, UnboundandhydraulicallyboundmixturesPart4:Testmethodsforlaboratoryreferencedensity andwatercontentVibratinghammer. EN132865, Unboundandhydrau
18、licallyboundmixturesPart5:Testmethodsforlaboratoryreferencedensity andwatercontentVibratingtable. prEN132867, UnboundandhydraulicallyboundmixturesPart7:Cyclicloadtriaxialtestforunboundmixtures. EN1328640, UnboundandhydraulicallyboundmixturesPart40:Testmethodforthedeterminationofthe directtensilestre
19、ngthofhydraulicallyboundmixtures. EN1328641, UnboundandhydraulicallyboundmixturesPart41:Testmethodforthedeterminationofthe compressiveofstrengthofhydraulicallyboundmixtures. EN1328642, UnboundandhydraulicallyboundmixturesPart42:Testmethodforthedeterminationofthe indirecttensilestrengthofhydraulicall
20、yboundmixtures. EN1328643, UnboundandhydraulicallyboundmixturesPart43:Testmethodforthedeterminationofthe modulusofelasticityofhydraulicallyboundmixtures. prEN1328644, UnboundandhydraulicallyboundmixturesPart44:Testmethodforthedeterminationofthe alphacoefficientofvitrifiedblastfurnaceslag. prEN132864
21、5, UnboundandhydraulicallyboundmixturesPart45:Testmethodforthedeterminationofthe workabilityperiodofhydraulicallyboundmixtures. prEN1328646, UnboundandhydraulicallyboundmixturesPart46:Testmethodforthedeterminationofthe moistureconditionvalue. prEN1328647, Unboundandhydraulicallyboundmixtures Part 47
22、Testmethodforthedeterminationof Californiabearingratio,immediatebearingindexandlinearswelling. prEN1328648, UnboundandhydraulicallyboundmixturesPart48:Testmethodforthedeterminationofthe degreeofpulverisation.EN1328642:2003(E) 4 prEN1328649, UnboundandhydraulicallyboundmixturesPart49:Testmethodforth
23、edeterminationofthe acceleratedswellingofsoiltreatedbylimeand/orhydraulicbinder. prEN1328650,Unboundandhydraulicallyboundmixtures Part50:Methodforthemanufactureoftest specimensofhydraulicallyboundmixturesusingProctorequipmentorvibratingtablecompaction. prEN1328651,Unboundandhydraulicallyboundmixture
24、s Part51:Methodforthemanufactureoftest specimensofhydraulicallyboundmixturesusingvibratinghammercompaction. prEN1328652, Unboundandhydraulicallyboundmixtures Part52:Methodforthemanufactureoftest specimensofhydraulicallyboundmixturesusingvibrocompression. prEN1328653, Unboundandhydraulicallyboundmixt
25、ures Part53:Methodforthemanufactureoftest specimensofhydraulicallyboundmixturesusingaxialcompression. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Ge
26、rmany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, SlovakRepublic,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN1328642:2003(E) 5 1Scope ThisEuropeanStandardspecifiesatestmethodforthedeterminationoftheindirecttensilestrengthofcylindrical specimensofhydraulically
27、boundmixtures.ThisEuropeanStandardappliestospecimensmanufacturedinthe laboratoryorpreparedfromcores. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarel
28、istedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). prEN1328650,Unboundandhydraulicallyboundm
29、ixtures Part50:Methodforthemanufactureoftest specimensofhydraulicallyboundmixturesusingProctorequipmentorvibratingtablecompaction. prEN1328651,Unboundandhydraulicallyboundmixtures Part51:Methodforthemanufactureoftest specimensofhydraulicallyboundmixturesusingvibratinghammercompaction. prEN1328652,Un
30、boundandhydraulicallyboundmixtures Part52:Methodforthemanufactureoftest specimensofhydraulicallyboundmixturesusingvibrocompression. prEN1328653,Unboundandhydraulicallyboundmixtures Part53:Methodforthemanufactureoftest specimensofhydraulicallyboundmixturesusingaxialcompression. 3 Termsanddefinitions
31、ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1 hydraulicallyboundmixture mixturethathardensbyhydraulicand/orpozzolanicand/orsulphaticand/orcarbonaticreaction,whichusuallyhas aworkabilitytosuitcompactionbyrollingandwhichisgenerallyusedinbases,subbasesandcappinglayers 3
32、2 indirecttensilestrength stressatfailureofacylindricalspecimensubjectedtoacompressionforceappliedontwooppositegeneratrix 3.3 slendernessratio ratioofthelengthtothediameterofacylindricalspecimen 4Principle Acylindricalspecimenofhydraulicallyboundmixturesissubjectedtoacompressionforceappliedalongthe
33、two oppositegeneratrixuntilfailure(seeFigure1).Theindirecttensilestrengthiscalculatedfromthefailureload.EN1328642:2003(E) 6 Key 1 Specimen 2 Packingstrips F Load Figure1Principleofindirecttensiletest 5Apparatus 5.1 Compressiontestingmachine ,capableoftestinghydraulicallyboundmixturescylindricalspeci
34、mens,with thefollowingrequirements: theprecisionofthemachineandtheloadindicationshallbesuchthattheultimateload, F,canbedetermined andmeasuredtoanaccuracyof1%; theloadingplatensshallbeatleastaslargeas,andpreferablylargerthanthelengthofthespecimentowhich theloadisapplied.Thesurfaceflatnessoftheplatens
35、shallbelessthan3%; provisionsshallbemadeforalignmentofspecimensatthecentreofthelowerplatens;visualalignmentisnot acceptable. 5.2 Packingorbearingstrip ,ofplywoodorhardboard,whichshallbeusedonlyonce.Theyshallhavethe followingdimensionsaccordingtothedimensionofthespecimen: length H; width 0,1 D; thick
36、ness (41) mm.EN1328642:2003(E) 7 6 Testspecimens 6.1 Manufactureoftestspecimen ThespecimenshallbemanufacturedinaccordancewithprEN 1 328650,prEN 1328651,prEN 1328652or prEN1328653.Thetypeofcompactionandcuringshallbestatedinthetestreport. 6.2 Shapeanddimension Thespecimenshallbeacylinderwithaslenderne
37、ssratiobetween0,8and2,0. 7 Testprocedure 7.1 Preparationofthetestspecimenpriortotest 7.1.1Dimensions Thedimensionsofthespecimenshallbemeasuredwithanaccuracyof0,5%. 7.1.2Mass Thespecimenshallbeweighedtoanaccuracyof0,25%.Thisshallbecomparedtothemassifknownatthe timeofmanufacturetoensurethatduringcurin
38、g,evaporationhasnotresultedinlossofmassgreaterthan2%.If thelossisgreaterthan2%,thisshallberecordedandtheresultingindirecttensilestrengthmaybediscarded sinceitmaybeunrepresentative. 7.1.3 Parallelismtoleranceofthegeneratrix Thetwooppositegeneratrixonwhichtheloadshallbeappliedshallhaveanoutparallelism
39、tolerancenot exceeding1mmin100mm.Specimensfailingthisrequirementshallbediscarded. 7.2 Specimenpositioning Theplatensandthesurfaceofthespecimensshallbeclean. Thespecimenandthepackingstripsshallbelocatedcentrallyontheplatensorontheauxiliaryplatenswithan accuracyoflessthan1mm. 7.3Loading Adjustthecompr
40、essionmachinetoachievecontactandapplytheloadinacontinuousanduniformmannerwithout shocktoobtainauniformincreaseinstressnogreaterthan0,2MPapersecond. 7.4 Datarecording Themaximumforcesustained Fshallberecorded. 8 Expressionofresult Theindirecttensilestrengthofthespecimenshallbecalculatedfromtheforceof
41、failure Fusingthefollowing formula:EN1328642:2003(E) 8 HD F R p 2 = it (1) where R it istheindirecttensilestrength,expressedinMegaPascal(MPa); F isthemaximumforcesustained,expressedinnewtons(N); H isthelengthofthespecimen,expressedinmillimetres(mm); D isthediameterofthespecimen;expressedinmillimetre
42、s(mm). Theindirecttensilestrengthshallbeexpressedtothenearest0,01N/mm. 9 Testreport ThetestreportshallrefertothisEuropeanStandardandshallincludethefollowinginformation: a) identificationofthespecimen; b) dimensionsofthespecimen; c) methodofspecimencompaction; d) conditionattimeofweighing(asreceived/
43、saturatedoptional); e) massofthespecimenatthetimeofmanufacturetothenearest10g; f) massofthespecimenatthetimeoftesttothenearest10g; g) percentagedifferencebetweenf)andd);ifgreaterthan2%,theindirecttensilestrengthmaybeinvalidand shallbestated; h) conditionofspecimenatreceiptforstorage(ifappropriate); i) methodofcuring/storage; j) conditionofspecimenattimeoftest(saturated,moist); k) ageofspecimenattimeoftest; l) dateoftest; m) indirecttensilestrength R it ofthespecimen; n) remarksaboutthe
