BS EN 13286-44-2003 Unbound and hydraulically bound mixtures - Test method for the determination of the alpha coefficient of vitrified blast furnace slag《松散的和液力粘合的混合料 玻璃质高炉矿渣的α系数测定.pdf

1、BRITISH STANDARD BS EN 13286-44:2003 Unbound and hydraulically bound mixtures Part 44: Test method for the determination of the alpha coefficient of vitrified blast furnace slag The European Standard EN 13286-44:2003 has the status of a British Standard ICS 93.080.20 BS EN 13286-44:2003 This British

2、 Standard was published under the authority of the Standards Policy and Strategy Committee on 21 May 2003 BSI 21 May 2003 ISBN 0 580 41908 8 National foreword This British Standard is the official English language version of EN 13286-44:2003. The UK participation in its preparation was entrusted by

3、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 internationa

4、l 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 purport to

5、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 committee any e

6、nquiries 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 9 and a bac

7、k 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 EN1328644 May2003 ICS93.080.20 Englishversion UnboundandhydraulicallyboundmixturesPart44:Te

8、st methodforthedeterminationofthealphacoefficientofvitrified blastfurnaceslag Mlangestraitsauxliantshydrauliquesetgravesnon traitesPartie44:Mthodedessaipourladtermination ducoefficientalphadeslaitiersdehautsfourneauxvitrifis UngebundeneundhydraulischgebundeneGemischeTeil 44:PrfverfahrenzurBestimmung

9、desAlphaKoeffizienten vonverglasterHochofenschlacke ThisEuropeanStandardwasapprovedbyCENon21February2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliogr

10、aphicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtoth

11、eManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EURO

12、PEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN1328644:2003EEN1328644:2003(E) 2 Contents page Foreword. 3 1 S

13、cope 4 2 Normativereferences . 4 3 Termanddefinition. 4 4 Apparatus. 5 4.1 Specificgrindingequipmentforfriabilitymeasurement 5 4.2 Specificequipmentformeasuringthespecificsurfaceofvitrifiedblastfurnaceslag. 5 4.3 Generalequipment. . 5 5 Samplingandpreparation 5 5.1 Sampling 5 5.2 Preparationoftestsa

14、mple . 5 6 Testprocedure 6 6.1 Friability . 6 6.2 Specificsurfaceanddensity 7 7 Expressionofresults. . 7 8 Testreport. . 7 AnnexA (normative) Equipmentformeasuringthespecificsurface. 8 Key 8 Bibliography . 9EN1328644:2003(E) 3 Foreword Thisdocument(EN1328644:2003)hasbeenpreparedbyTechnicalCommitteeC

15、EN/TC227“Roadmaterials“, thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyNovember2003,andconflictingnationalstandardsshallbewithdrawnatthelatest byNovember2003. ThisEuropeanStandardisoneo

16、faseriesofstandardsaslistedbelow. prEN132861, UnboundandhydraulicallyboundmixturesTestmethodsPart1:Testmethodsforlaboratory referencedensityandmoisturecontentIntroductionandgeneralrequirements. prEN132862, UnboundandhydraulicallyboundmixturesTestmethodsPart2:Testmethodsforlaboratory referencedensity

17、andmoisturecontentProctorcompaction . prEN132863, UnboundandhydraulicallyboundmixturesTestmethodsPart3:Testmethodsforlaboratory referencedensityandmoisturecontentVibrocompressionwithcontrolledparameters. prEN132864, UnboundandhydraulicallyboundmixturesTestmethodsPart4:Testmethodsforlaboratory refere

18、ncedensityandmoisturecontentVibratinghammer. prEN132865, UnboundandhydraulicallyboundmixturesTestmethodsPart5:Testmethodsforlaboratory referencedensityandmoisturecontentVibratingtable. prEN132867, UnboundandhydraulicallyboundmixturesTestmethodsPart7:Cyclicloadtriaxialtestfor unboundmixtures. prEN132

19、8640, UnboundandhydraulicallyboundmixturesPart40:Testmethodforthedeterminationofthe directtensilestrengthofhydraulicallyboundmixtures. prEN1328641, UnboundandhydraulicallyboundmixturesPart41:Testmethodforthedeterminationofthe compressivestrengthofhydraulicallyboundmixtures. prEN1328642, Unboundandhy

20、draulicallyboundmixturesPart42:Testmethodforthedeterminationofthe indirecttensilestrengthoftestspecimens. prEN1328643, UnboundandhydraulicallyboundmixturesPart43:Testmethodforthedeterminationofthe modulusofelasticityofhydraulicallyboundmixtures. prEN1328644, UnboundandhydraulicallyboundmixturesTestm

21、ethodsPart44:Testmethodsforbinder activityDeterminationofalphacoefficientofvitrifiedblastfurnaceslag. prEN1328645, UnboundandhydraulicallyboundmixturesTestmethodsPart45:Testmethodforthe determinationoftheworkabilityperiod. prEN1328646, UnboundandhydraulicallyboundmixturesPart46:Testmethodforthedeter

22、minationofthe moistureconditionvalue(MCV). prEN1328647, UnboundandhydraulicallyboundmixturesTestmethodsPart47:Testmethodsforthebearing capacity,CaliforniaBearingRatio(CBR),ImmediateBearingIndex(IBI)andlinearswelling. prEN1328648, UnboundandhydraulicallyboundmixturesPart48:Testmethodforthedeterminati

23、onofdegree ofpulverisation.EN1328644:2003(E) 4 prEN1328649, UnboundandhydraulicallyboundmixturesMethodsformakingtestspecimensPart49: Acceleratedswellingtestforsoiltreatedbylimeand/orhydraulicbinder. prEN1328650, UnboundandhydraulicallyboundmixturesPart50:Methodsformakingtestspecimensusing proctorequ

24、ipmentorvibratingtablecompaction. prEN1328651, UnboundandhydraulicallyboundmixturesPart51:Methodsformakingtestspecimensby vibratinghammercompaction prEN1328652, UnboundandhydraulicallyboundmixturesMethodsformakingtestspecimensPart52:Making specimensbyvibrocompression. prEN1328653, Unboundandhydrauli

25、callyboundmixturesMethodsformakingtestspecimensPart53:Making cylindricalspecimensbyaxialcompression. AnnexAisnormative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,

26、Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom. 1Scope ThisEuropeanStandarddescribesatestmethodforthedeterminationofthealpha( a )coefficientofvitrifiedblast furnaceslag. ThisEuropeanStand

27、ardappliestovitrifiedblastfurnaceslagobtainedbygranulationorbypelletizing. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedre

28、ferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN1966, MethodsoftestingcementDeterminationoffineness. EN9321, Test

29、sforgeneralpropertiesofaggregatesPart1:Methodsforsampling. EN10971, TestsformechanicalandphysicalpropertiesofaggregatesPart1:Determinationoftheresistanceto wear(microDeval). EN10977, TestsformechanicalandphysicalpropertiesofaggregatesPart7:Determinationoftheparticle densityoffillerPyknometermethod.

30、3 Termanddefinition ForthepurposesofthisEuropeanStandard,thefollowingtermanddefinitionapply. 3.1 alpha( a )coefficient a istheproductofthespecificsurfaceofthenaturalelementsoftheslagsmallerthan0,080mmandthefriability wherethefriabilityisthepercentageofelementssmallerthan0,080mmobtainedaftergrindinga

31、ccordingtothis EuropeanStandard NOTEThe a coefficientcharacterisesthereactivityofafreshvitrifiedblastfurnaceslagusedforroadconstruction.EN1328644:2003(E) 5 4Apparatus 4.1 Specificgrindingequipmentforfriabilitymeasurement 4.1.1 Asystemimpartingarotationaboutthehorizontalaxisof(50 1) rev/mintothegrind

32、ingcylinder throughoutthedurationofthetest. 4.1.2 Asystemwitharevolutioncounterwhichstopstherotationofthecylinderafter1175revolutions. 4.1.3 ThreestainlesssteelgrindingmicroDevalcylindersinaccordancewithEN10971. 4.1.4 Beadsofindustrialporcelain,(19 1)mmindiameter. 4.2 Specificequipmentformeasuringth

33、especificsurfaceofvitrifiedblastfurnaceslag TheequipmentshallconformtoEN1966butwithapressuregaugeconformingtoannexA. 4.3 Generalequipment 4.3.1 Ventilatedovenfordryingat110C 5C. 4.3.2 Scaletoreadmassesof2 500gwithanaccuracyof1g. 4.3.3 Scaletoreadmassesof150gwithanaccuracyof0,005g. 4.3.4 Sieveof5mm,w

34、ithbottompan. 4.3.5 Sievewithanaperturebetween8and12,5mm. 4.3.6 Sieveof0,080mm. 4.3.7 Rifflewithanopeninglargerthan10mm. 4.3.8 Stiffbristledbrush. 4.3.9 Softbristledbrush. 5 Samplingandpreparation 5.1Sampling ThesamplereductionoperationsshallbecarriedoutinaccordancewithEN9321. Themassofthetestsample

35、shallbebetween2kgand2,5kg. 5.2 Preparationoftestsample Thetestsampleshallbedriedintheoventoconstantmass,thensievedat5mm.Thecrumblyelementslarger than5mmshallbecrushedthroughthesieveusingthestiffbristledbrush.Theoversizeshallbediscarded. Fromthetestsample,takethreesubsamplesofmass(500 1)g. Setasideth

36、erestofthetestsampletomeasurethespecificsurfaceoftheelementssmallerthan0,080mm.EN1328644:2003(E) 6 6 Testprocedure 6.1Friability Thevalueofthefriability, F,in%,shallbecalculatedwiththeformula 038 , 2 152 , 1 0 - = F F where F isthefriability,expressedinpercent(%); F 0 istheelementaryfriability,expre

37、ssedinpercent(%). NOTE1Previously, friability ( F)wasdeterminedusingporcelaincylinders.NowfriabiltyisdeterminedusingmicroDeval cylinders.Thisisknownaselementaryfriability, F 0 .Inordertoconvert F 0 to F, theaboveregressionequationshouldbeused. Introduceasubsampleintoeachofthethreecylinders. Thenintr

38、oduceintoeachcylinder(1,95 0,01)kgofporcelainbeads. NOTE2Beaddiameterscanbecheckedquicklybyrunningthebeadsovertwoparallelbarsspaced18mmapart. Closethecylindershermetically. Rotatethecylindersontheirhorizontalaxisfor1175revolutions. NOTE3Makesurethecylindersdonotleakbeforestackingtheminthegrinder. In

39、ordertoseparatethegroundslagfromtheporcelainbeads,emptythecontentsofeachcylinderontothesieve withanaperturebetween8mmand12,5mmplacedonasievebottompan.Usingthesoftbristledbrush,brush carefullyinsideeachcylinderinordertorecoverallthefineelements. Drysievethegroundslagonthe0,080mmsieve. NOTE4Ifnecessar

40、y,usea0,5mmsievetofacilitatethesieving. Setasidethematerialpassing0,080mmsievewhichshallbeusedtodeterminethedensityinaccordancewith 6.2. NOTE5Inthecaseofsamplesofthesameorigin,asingledeterminationofthedensityoftheelementsfinerthan0,080mm maybecarriedout. Thencompletethesievingonthe0,080mmsievebywash

41、ingandovendryingtheoversize.Thendrysieveagain andweightheoversizetowithin1 g.Theelementaryfriability, F 0 ,(orproportionofelementssmallerthan 0,080mm)shallbeobtainedfromtheformula. 100 500 , 0 500 , 0 0 - = m F where F 0 istheelementaryfriability,expressedinpercent(%); m istheaveragemassoftheoversiz

42、ematerialfromthethreesubsamples,expressedinkilograms(kg). Theresultshallbeexpressedasapercentagetoonedecimalplace.EN1328644:2003(E) 7 6.2 Specificsurfaceanddensity Usingtherestofthetestsamplefrom5.2,itshallbedrysieveoveran0,080mmsieve.Thespecificsurface, S,of theelementsfinerthan0,080mmshallbemeasur

43、edaccordingtoEN1966butwiththeequipmentdescribedin annexA. DensitydeterminationfortherequirementsofEN1966shallbecarriedoutinaccordancewithEN10977. 7 Expressionofresults The a coefficientofthevitrifiedblastfurnaceslagshallbedeterminedbytheproduct: a = S F/1000 where a isthe a coefficientofthevitrifiedblastfurnaceslag; S isthespecificsurfaceoftheelementsfinerthan0,080mm,expressedinsquarecentimetresper