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
