1、BRITISH STANDARD BS EN 13892-7:2003 Methods of test for screed materials Part 7: Determination of wear resistance to rolling wheel of screed material with floor coverings The European Standard EN 13892-7:2003 has the status of a British Standard ICS 91.100.10 BS EN 13892-7:2003 This British Standard
2、, was published under the authority of the Standards Policy and Strategy Committee on 11 June 2003 BSI 11 June 2003 ISBN 0 580 42041 8 National foreword This British Standard is the official English language version of EN 13892-7:2003. The UK participation in its preparation was entrusted by Technic
3、al Committee B/544, Plastering, rendering, dry lining, to Subcommittee B/507/6 (formerly designated B/544/6), Screeds and in situ floorings, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The Bri
4、tish Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A Briti
5、sh Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to
6、 the responsible 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,
7、the EN title page, pages 2 to 10, 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 EN138927 June2003 ICS91.100
8、.10 Englishversion MethodsoftestforscreedmaterialsPart7:Determinationof wearresistancetorollingwheelofscreedmaterialwithfloor coverings MthodesdessaidesmatriauxdechapePartie7: Dterminationdelarsistancelusureparroulette pivotantedesmatriauxdechapeavecrevtementsdesol PrfverfahrenfrEstrichmrtelundEstri
9、chmassenTeil7: BestimmungdesWiderstandesgegenRollbeanspruchung vonEstrichenmitBodenbelgen ThisEuropeanStandardwasapprovedbyCENon3April2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanya
10、lteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmembe
11、rintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,S
12、witzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN138927:2003EEN138927:2003(E)
13、 2 Contents page Foreword3 1 Scope 3 2 Normativereferences 3 3 Symbolsandabbreviations . .3 4 Principle4 5 ApparatusTestrig 4 5.1 General4 5.2 Supportingtable .4 5.3 Swivelcastor . .4 6 Preparationoftestspecimens. .4 7 Procedure .5 8 Expressionofresults . .5 9 Testreport . .6 Bibliography 10EN138927
14、:2003(E) 3 Foreword Thisdocument(EN138927:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC303,“Floorscreedsand insituflooringsinbuildings“thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyDec
15、ember2003,andconflictingnationalstandardsshallbewithdrawnatthelatest byDecember2003. ItwaspreparedbyWorkingGroup2ScreedmaterialandfloorscreedsTestmethods“takingintoaccountthe proposalssubmittedbyWorkingGroup1ScreedmaterialandfloorscreedsDefinitions,propertiesand requirements“. NoexistingEuropeanStan
16、dardissuperseded. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portu
17、gal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom. 1Scope ThisEuropeanStandardspecifiesamethodfordeterminingtheresistancetoaloadedrollingwheelonmoulded mortarspecimensmadefromcementitiousscreedcalciumsulfatescreed,asphaltscreed,magnesitescreed, andsyntheticresinscreedmaterialwithafloorcoveri
18、ng. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapply
19、tothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN649,ResilientfloorcoveringsHomogeneousandheterogeneouspolyvinylchloridefloorcoverings Specification. EN6601, ResilientfloorcoveringsDete
20、rminationofwearresistancePart1:Stuttgarttest. EN6602, ResilientfloorcoveringsDeterminationofwearresistancePart2:FrickTabertest. EN13813, ScreedmaterialandfloorscreedsScreedmaterialPropertiesandrequirements EN138921, MethodsoftestforscreedmaterialsPart1:Sampling,makingandcuringspecimensfortest. prEN1
21、4259, AdhesivesforfloorcoveringsRequirements. 3 Symbolsandabbreviations RWFC RollingWheel,FloorCoveringresistanceinNewton.EN138927:2003(E) 4 4Principle Concreteslabssurfacedwithscreedmaterialandwithadefinedpolyvinylchloridefloorcoveringaresubjectedto therepeatedpassagesofaloadedrollingwheel.Thespeci
22、menfixedtoasupportmovesunderaloadedcastor wheelintwoperpendiculardirectionsatdifferentfrequencies.Themovementcreatesnormalandshearstressonto thescreedmaterial.Atthepointswherethecastorturns,shearstresscausedbyatorsionactionissuperimposed. Duringthetest,thescreedmaterialisinfluencedbythefatiguingeffe
23、ctofrepeatedpassagesoftheloadedwheel. Thetestisrepeatedwithincreasingload.Theresistancetotherollingwheelistakenasthemaximumloadat whichthetestcanbepassedwithoutdelaminationbetweenthefloorcoveringandthescreedmaterial. 5 ApparatusTestrig 5.1General TheprincipleofthetestrigisshowninFigure1. NOTE Thetes
24、trigisthesameasinEN1818,exceptfortheswivelcastor,theloadandthelengthofthemovement. 5.2Supporting table Thesupportingtableshouldbelevelandatleast400mmx400mm.Itsupportsthetestspecimenwhileitis movedundertheloadedcastor,describedin5.3.Thesupportingtableandspecimenmoveunderthecastorwheel intwodirections
25、atrightangle,withalongitudinalmovementof(210 2) mmwithafrequencyof (23,60,7)cycles/minute,andtransversemomentof(1502)mmandafrequencyof(5,80,2)cycles/minute. Forthewearonthetestareatobeuniform,thetwomovementsshallnotbecoordinated,butmaybedrivenfor examplebyacommonmotorwitharollerchaintransmissionasde
26、scribedinISO606,withchainwheelswithfifty sevenandfourteenteethrespectively. Theratioofthefrequenciesshallbe4,070,03toensurethatthewheeldoesnotfollowthesamepathallthe time. 5.3 Swivelcastor TheswivelcastorisshowninFigure2.Thewheelismadefromasteelrollerbearing.Thediametershallbe (47 1)mm,thewidthshall
27、be(20,6 0,5)mm.Thetravellingsurfaceshallbecylindricalwithchamferededge withradius1mm.Thecastorcanmovefreelyabouttheswivelaxis. Theswivelaxisshallbefreetomovevertically(whichmaybeachievedwithrollerbearingsatbothendsofthe axis,atleast300mmapart)andshallbeloadedsothatthetotalloadappliedbythecastoriseit
28、her(150 5)N, (250 5)N,(350 5)N,(450 5)Nor(550 5)N.Theoverhangshallbe(19 1)mm,seeFigure2. 6 Preparationoftestspecimens Theresistancetorollingwheelismeasuredonatleast3specimenmadeinaccordancewithEN138921. Squareslabswithminimumedgelengthof350mmandwithathicknessof 30mmshallbeusedasspecimens Wherethepro
29、ductisintendedtobeappliedatathicknesslessthan10mm3testareasshallbemadewiththe minimumthickness,butnotlessthan0,5mm,andthreetestareasshallbemadewiththemaximumthicknessof thescreedmaterialasindicatedbythemanufacturer.Whenthethicknessislessthan30mm,thescreedmaterial shouldbeappliedontoaconcretesubstrat
30、eaccordingtoEN1 38921. A1,5mmhomogeneouspolyvinylchloridefloorcoveringaccordingtoEN6601orEN6602with2040%filler classifiedinwearclassPandLevelofuseclass32accordingtoEN649.Theflooring,whichshouldnotbeolder than1year,isadheredtothesurfaceofthescreedmaterialwithadispersionadhesivesuitableforpolyvinyl ch
31、loridefloorcoveringswhichmeetstherequirementsofprEN14259.ThefloorcoveringshouldbeappliedattheEN138927:2003(E) 5 timethatisindicatedbythescreedmaterialmanufacturerastheearliestpossibleforfloorcoverings.Thistimecan beexpressedexplicitlyasadryingtimeinhoursordays,orrelatedtothethicknessoftheproduct,for
32、example 7days/centimeter. NOTE Todeterminethemaximumresistancetorollingwheelforanunknownmaterial,aminimumoffivespecimensperthicknessis necessary.Inthatcasethefirstspecimenshouldbetestedat350N. 7Procedure Thetestingisperformed28daysaftercastingthespecimen,orlaterifrequiredbecauseoftheminimumdrying ti
33、meindicatedbythescreedmaterialmanufacturer.Innocaseshouldthetestingbedoneearlierthan7daysafter adheringthefloorcovering. Thetestspecimenshallbeinstalled.Theappropriateverticalloadforthescreedmaterialundertestshallbe chosenfromthefivevaluesgiveninclause5.3.Theapparatusshallbestartedandtheloadedwheelb
34、elowered gentlysothatthewheelcomesintocontactwiththetestspecimen.Thedurationofthetestshallbe10000cycles (8h)inthedirectionofthelongmovement.Ifseveredamageoccursthetestshallbestoppedimmediatelyand thenumberofcyclesrecorded. Thefloorshallbeinspectedtoascertainifdelaminationhastakenplace.Ifnoobviousdel
35、aminationisobserved, drillingshallbeperformedinsixpositionsaccordingtoFigure3.Adiamondcoredrillwithinnerandouterdiameter of(361)mmand(421)mm,respectivelyisused.Thedrillingmachineshouldbeattachedtoafixturewhich allowsatrulyverticalmovement.Thedrillshallrunat(3000100)rev/minuteandthedrillingshallconti
36、nueuntil dustfromthescreedmaterialisvisible(23secondsperhole).Ifanyofthecircularfloorcoveringdiscsisremoved completelybythedrilling,thespecimenhasfailedthetest,andthemodeoffailureisnoted.Adiscwhichisstuckin thedrillshallberemovedbeforedrillingthenextposition Ifthetesthasfailedthewholetestprocedurema
37、yberepeatedatalowerloadlevel. 8 Expressionofresults Foreachspecimen,thenumberofdiscsremovedbythedrillingshallbenotedtogetherwiththemodeoffailure.If nodischasbeenremovedofanyofthethreeorsixspecimens,thescreedmaterialhaspassedthetestandthe resistancetorollingwheelisexpressedastheloadused. Theresultoft
38、hetestisthehighestloadthescreedmaterialcanwithstandwithoutanydelamination,termed RWFC,usingthefollowingsystem: RWFC 150 RWFC 250 RWFC 350 RWFC 450 RWFC 550EN138927:2003(E) 6 9 Testreport Thereportshallincludethefollowinginformation: a) thenumber,titleanddateofissueofthisEuropeanStandard; b) nameanda
39、ddressofthelaboratorycarryingoutthetestsandnameandaddressofthelaboratorypreparingthe samples(ifdifferent); c) identificationnumberofthetestreport; d) nameandaddressofthemanufacturerorsupplieroftheproduct; e) nameandidentificationmarksorbatchnumberoftheproduct; f) dateofsupplyoftheproduct; g) themeth
40、odofsampling(byreferencetoEN138921)andbywhichorganisation; h) theplace,dateandtimeofsampling; i) identificationofthescreedsamples,includingtype,originanddesignationofthescreedmaterialbyreferenceto therelevantproductstandardEN13813; j) preparation(mixing,casting,preparationofthesubstrate,useofthebond
41、ingagent,ifappropriate)andstorage (curing)conditionsbyreferencetoEN138921; k) thedateandtimeofpreparingspecimensfortest(i.e.dateandtimeofanymixing,casting,mouldingor demouldingprocedure,ifappropriateadheringoffloorcoverigs); l) ageofscreedmaterialwhenpolyvinylchloridefloorcoveringwasadheredandtheage
42、ofthescreedmaterial whentested; m) testmethodused(referencemanualoralternativemethod,ifappropriate),detailsoftestspecimensincluding number,dimensions,mass,etc.ifappropriateanddetailsoffloorcovering,batchnumberanddateof manufacture; n) dateoftestandtheidentificationnumberoftheapparatusordetailsofthet
43、estequipmentused,includingthe make,typeandcapacityandthecalibrationsdetails; o) testresultsstatedasnumberofdiscsfailed(withdescriptionoffailure)oneachspecimenandtheRWFCvalue inN(oneof150,250,350,450,550); p) remarks; q) dateoftestreportandsignature.EN138927:2003(E) 7 Key 1 Testpiece 2 Lengthofstroke(150 2)
