BS EN 450-2-2005 混凝土用飞灰.合格评价

BRITISHSTANDARDBSEN450-2:2005Flyashforconcrete—Part2:ConformityevaluationTheEuropeanStandardEN450-2:2005hasthestatusofaBritishStandardICS91.100.30

 
 BSEN450-2:2005ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon5May2005©BSI5May2005ISBN058045505XNationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN450-2:2005.TogetherwithBSEN450-1:2004,thisdocumentsupersedesBSEN450:1995.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeB/516,Cementandlime,toSubcommitteeB/516/101,Additionsforconcrete,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.AdditionalinformationTheterm“flyash”usedinthisstandardcoverspulverized-fuelash(PFA)whichisthemoreprecisetermforflyashesproducedfromelectricitygeneratingpowerstationsburningpulverizedhardcoalsandwhichhasbeenincommonuseintheUKformanyyears.ThisBritishStandardspecifiestheschemefortheevaluationofconformityofflyashasanadditioninconcrete,includingcertificationofconformity.IndoingsoitcomplementsBSEN450-1:2005,which,whenimplementedintheUK,willmakeappropriatereferencetothisBritishStandard.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to24,aninsidebackcoverandabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateCommentsEUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN450-2February2005ICS91.100.30SupersedesEN450:1994EnglishversionFlyashforconcrete-Part2:ConformityevaluationCendrevolantpourbeton-Partie2:EvaluationdelaconformitéFlugaschefürBeton-Teil2:KonformitätsbewertungThisEuropeanStandardwasapprovedbyCENon22December2004.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2005CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN450-2:2005:EEN450-2:2005(E)2ContentsPageForeword..............................................................................................................................................................41Scope......................................................................................................................................................52Normativereferences............................................................................................................................53Termsanddefinitions...........................................................................................................................53.1Specificdefinitions................................................................................................................................53.2Generaldefinitions................................................................................................................................64Tasksfortheproducer..........................................................................................................................74.1Factoryproductioncontrol...................................................................................................................74.2Internalqualitycontrol..........................................................................................................................84.3Autocontroltestingofsam