1、BRITISH STANDARD BS EN 13286-49:2004 Unbound and hydraulically bound mixtures Part 49: Accelerated swelling test for soil treated by lime and/or hydraulic binder The European Standard EN 13286-49:2004 has the status of a British Standard ICS 93.080.20 BS EN 13286-49:2004 This British Standard, was p
2、ublished under the authority of the Standards Policy and Strategy Committee on 18 March 2004 BSI 18 March 2004 ISBN 0 580 43564 4 National foreword This British Standard is the official English language version of EN 13286-49:2004. The UK participation in its preparation was entrusted by Technical C
3、ommittee B/510, Road materials, to Subcommittee B/510/4, Cementitous 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-refer
4、ences The British Standards 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
5、 Standards Online. This publication 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 t
6、o the responsible international/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 insid
7、e front cover, the EN title page, pages 2 to 11 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 EN1328649 March2004 ICS93.080.20
8、 Englishversion UnboundandhydraulicallyboundmixturesPart49: Acceleratedswellingtestforsoiltreatedbylimeand/orhydraulic binder Mlangesnontraitsetmlangesbasedeliant hydrauliquePartie49:Essaidegonflementacclrpour lessolstraitslachauxet/oulianthydraulique UngebundeneundhydraulischgebundeneGemischeTeil 4
9、9:BeschleunigteQuellprfungvonmitKalkund/oder hydraulischemBindemittelbehandeltemBoden ThisEuropeanStandardwasapprovedbyCENon9January2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalt
10、eration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmembe
11、rintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norwa
12、y,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnati
13、onalMembers. Ref.No.EN1328649:2004:EEN1328649:2004(E) 2 Contents page Foreword. 3 1 Scope . 5 2 Normativereferences . 5 3 Termsanddefinitions. 5 4 Principle. 5 5 Apparatus 5 6 Procedure 6 6.1 Productionofthetestspecimens . 6 6.2 Storageofthetestspecimens. 7 6.2.1 Treatmentwithlimealone. . 7 6.2.2 Tr
14、eatmentwithahydraulicbinderorhydraulicbinderinassociationwithlime. 7 6.3 Measurementoftheexpansionofthetestspecimens . 7 7 Calculationandexpressionoftheresults . 8 8 Testreport . 9 AnnexA (informative) Exampleofatestreport 10 Bibliography . 11EN1328649:2004(E) 3 Foreword Thisdocument(EN1328649:2004)
15、hasbeenpreparedbyTechnicalCommitteeCEN/TC 227“Road materials”,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical testorbyendorsement,atthelatestbySeptember2004,andconflictingnationalstandardsshallbe withdrawnatthelatestbyDe
16、cember2004. ThisEuropeanstandardisoneofaseriesofstandardsaslistedbelow. EN132861, UnboundandhydraulicallyboundmixturesPart1:Testmethodsforlaboratoryreference densityandwatercontentIntroduction,generalrequirementsandsampling . prEN132862, UnboundandhydraulicallyboundmixturesPart2:Testmethodsforlabora
17、toryreference densityandmoisturecontentProctorcompaction . EN132863, UnboundandhydraulicallyboundmixturesPart3:Testmethodsforlaboratoryreference densityandwatercontentVibrocompressionwithcontrolledparameters . EN132864, UnboundandhydraulicallyboundmixturesPart4:Testmethodsforlaboratoryreference dens
18、ityandwatercontentVibratinghammer . EN132865, UnboundandhydraulicallyboundmixturesPart5:Testmethodsforlaboratoryreference densityandwatercontentVibratingtable . EN132867, UnboundandhydraulicallyboundmixturesTestmethodsPart7:Cyclicloadtriaxialtestfor unboundmixtures. EN1328640, Unboundandhydraulicall
19、yboundmixturesPart40:Testmethodforthedeterminationofthe directtensilestrengthofhydraulicallyboundmixtures . EN1328641, UnboundandhydraulicallyboundmixturesPart41:Testmethodforthedeterminationofthe compressivestrengthofhydraulicallyboundmixtures . EN1328642, UnboundandhydraulicallyboundmixturesPart42
20、:Testmethodforthedeterminationofthe indirecttensilestrengthofhydraulicallyboundmixtures . EN1328643, UnboundandhydraulicallyboundmixturesPart43:Testmethodforthedeterminationofthe modulusofelasticityofhydraulicallyboundmixtures . EN1328644, UnboundandhydraulicallyboundmixturesPart44:Testmethodforthed
21、eterminationofthe alphacoefficientofvitrifiedblastfurnaceslag . EN1328645, UnboundandhydraulicallyboundmixturesPart45:Testmethodforthedeterminationofthe workabilityperiodofhydraulicallyboundmixtures. EN1328646, UnboundandhydraulicallyboundmixturesPart46:Testmethodforthedeterminationofthe moisturecon
22、ditionvalue. EN1328647, UnboundandhydraulicallyboundmixturesPart47:Testmethodforthedeterminationof Californiabearingratio,immediatebearingindexandlinearswelling .EN1328649:2004(E) 4 prEN1328648, UnboundandhydraulicallyboundmixturesPart48:Testmethodforthedeterminationof degreeofpulverisation. EN13286
23、49, UnboundandhydraulicallyboundmixturesPart49:Acceleratedswellingtestforsoiltreated bylimeand/orhydraulicbinders . prEN1328650, UnboundandhydraulicallyboundmixturesPart50:Methodsformakingtestspecimens usingproctorequipmentorvibratingtablecompaction . prEN1328651, Unboundandhydraulicallyboundmixture
24、sPart51:Methodsformakingtestspecimens byvibratinghammercompaction . prEN1328652, UnboundandhydraulicallyboundmixturesMethodsformakingtestspecimensPart52: Makingspecimensbyvibrocompression . prEN1328653, UnboundandhydraulicallyboundmixturesMethodsformakingtestspecimensPart53: Makingcylindricalspecime
25、nsbyaxialcompression . AnnexAisinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Cyprus,CzechRepublic, Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,
26、Latvia,Lithuania, Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,Switzerland andUnitedKingdom.EN1328649:2004(E) 5 1Scope ThisEuropeanStandarddescribesanacceleratedswellingtestforsoiltreatedbylimeand/orhydraulicbinder. Thetestmethodisapplicabletomixturesthathavesuf
27、ficientfinesorcohesiontopermit,immediatelyafter manufacture,theextrusionofthespecimenfromthemouldwithoutdamage. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetext,andthepubli
28、cationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies(includingamendments). prEN132862, Unboundandhydrauli
29、callyboundmixturesPart2:Testmethodsforlaboratoryreference densityandmoisturecontentProctorcompaction. prEN1328653, UnboundandhydraulicallyboundmixturesMethodsformakingtestspecimensPart53: Makingcylindricalspecimensbyaxialcompression. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefoll
30、owingtermsanddefinitionsapply. 3.1 lime quicklimeorhydratedlime 3.2 hydraulicbinder materialoracombinationofmaterials(cement,hydraulicroadbinder,granulated/groundgranulatedblast furnaceslag,calcareous/siliceousflyash,lime)thatsetsandhardensbychemicalreactionwithwaterand remainsstable,evenunderwater
31、4Principle Thehydraulicsettingofaspecimenoftreatedmixtureisacceleratedusingspecialstorageconditionsand expansionattheendofasetperiodoftime(maximumof14days)ismeasured. Expansionismeasuredtoassessthedimensionalstabilityofthemixture. Theexpansionisdeterminedbythechangeofapparentvolumeofthetestspecimens
32、( d= h=50mm)over time,firststoredinasaturatedatmosphere,andthenimmersedinwaterat40Cundertheconditionsgiven inclause6. 5Apparatus 5.1 Mixertoprovidehomogeneousmixturesofmaterialswiththetreatmentproductsconsidered. 5.2 ApparatusinaccordancewithprEN1328653.EN1328649:2004(E) 6 5.3 Constanttemperaturebat
33、hadequatetomaintainasufficientvolumeofwaterat(40 2)C for total immersionofthetestspecimenssubjecttothetest. 5.4 Balance,configuredtoweighspecimensinairandwater,whoseaccuracyiscompatiblewiththe requirementsof6.3. 5.5 Testspecimenconfinementbelts,madefromasynthetic,flexibleandwaterpermeablefabricwitht
34、he dimensionsof(170 10)mmand49mmminimum. 5.6 Elasticbracelets. 5.7 Callipersreadabletoanaccuracyof0,02mm. 5.8 Stopwatch. 5.9 Porousstones,spongeorabsorbentpaper. 5.10 Scoops. 5.11 Trowels. 5.12 Scissors. 6Procedure 6.1 Productionofthetestspecimens Selecttheappropriatewatercontent,bindertypeandbinder
35、content. NOTE Ifappropriate,theswellingofseveralmixturescharacterizedbydifferentwatercontentsandbindercontents canbestudiedinthesametestsequence. Removegranularparticlesgreaterthan6,3mmbeforemixing. Producethemixtureinaccordancewithpracticeattheplaceofuse,reproducingthetimeperiodsbetweenthe introduc
36、tionofthebinder(s)andcompaction.Assessthequalityofmixingvisually(uniformityofcolourandthe granularcharacteristicsofthemixture). Thequantityofmixturetobepreparedshallbesufficienttopermittherealisationofthetestitself,andthatof theonepoint“NormalProctor”forthewatercontentandbinderdosageselected.Foragiv
37、enmixture,these quantitiesshallnotbelessthan4,5kgwhentheProctormouldisusedandnotlessthan7kgwhenthe Californiabearingratiomouldisused. DeterminethevalueoftheonepointNormalProctorwetdensityofthemixtureinaccordancewith prEN132862. Using(96 0,5)%ofthisvalue,produceatleast3testspecimens( d= h=50mm)usinga
38、xialcompressionin accordancewithprEN1328653. Takeeachspecimenoutofthemouldimmediatelyafterbeingmadeandstoreinaccordancewith6.2.EN1328649:2004(E) 7 6.2 Storageofthetestspecimens 6.2.1 Treatmentwithlimealone Storethespecimensfor(72 4)hat(20 2)Catmorethan90%humidity,thenimmersethementirelyfor (168 4)hi
39、nwaterat(40 2)C. 6.2.2 Treatmentwithahydraulicbinderorhydraulicbinderinassociationwithlime Storethespecimensat(20 2)Catmorethan90%humidityforaperiodbetween1,5and2timesthe workabilityperiodofthemixture;thenimmersethementirelyfor(168 4)hinwaterat(40 2)C. NOTE Theworkabilityperiodtobeconsideredisprefer
40、ablythatgiveninthetechnicalsheetoftheproducerofthe binder.Intheabsenceofthisinformation,thisperiodmaybeevaluatedfrompreviousexperience,ordeterminedin accordancewithprEN1328645. 6.3Measurementoftheexpansionofthetestspecimens Thevolumetricexpansionistheaverageofthevaluesmeasuredon3testspecimensascerta
41、inedinthe followingway: Immediatelyafterdemoulding,determinetheinitialvolume V 0 ofeachofthespecimensbymeasuringwith callipers,asillustratedinFigure1,diameters d 1 , d 2 , d 3 and2heights h 1 and h 2 ,toanaccuracyof 0,1mm. Calculatethevolume V 0 (roundedtothenearest0,1mlaccordingtotheexpression: V 0
42、 =( p /4)( d 1 + d 2 + d 3 )/3 2 ( h 1 + h 2 )/2 (1) where V 0 istheinitialvolume(immediatelyafterremovalfromthemould)ofthetestspecimen, expressedincubicmillimetres(mm 3 ); d 1 , d 2 , d 3 arethediametersofthetestspecimens,expressedinmilliimetres(mm); h 1 , h 2 aretheheightsofthetestspecimens,expres
43、sedinmilliimetres(mm). Figure1Methodfordeterminingtheinitialvolume V 0EN1328649:2004(E) 8 Afterstorageat20Catmorethan90%humidityasdescribedin6.2.1and6.2.2,confinethetestspecimen bysurroundingitwiththefabricbelt,whichisaffixedwithoutexcessiveforcetotheoutsideofthespecimen usingtwoorthreeelasticbracelets. Thenplacethetestspecimenonaporousstoneandimmerseinwaterthermostaticallycontrolledat (40 2)C. Determinethespecimenvolumeafteraperiodofimmersio
