EN 13793-2003 en Thermal insulating products for building applications Determination of behaviour under cyclic loading《建筑物用热绝缘产品 周期加载条件下性能的测定》.pdf

1、BRITISH STANDARD BS EN 13793:2003 Thermal insulating products for building applications Determination of behaviour under cyclic loading The European Standard EN 13793:2003 has the status of a British Standard ICS 91.100.60 BS EN 13793:2003 This British Standard, was published under the authority of

2、the Standards Policy and Strategy Committee on 20 November 2003 BSI 20 November 2003 ISBN 0 580 42961 X National foreword This British Standard is the official English language version of EN 13793:2003. The UK participation in its preparation was entrusted by Technical Committee B/540, Energy perfor

3、mance of materials, components and buildings, to Subcommittee B/540/1, European Standards for thermal insulation, 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 implem

4、ent 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 Standards Online. This publication does

5、 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 to the responsible international/European

6、 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, the EN title page, pages

7、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 EN13793 September2003 ICS91.100.60 Englishversion Thermalinsulatingprodu

8、ctsforbuildingapplications Determinationofbehaviourundercyclicloading Produitsisolantsthermiquesdestinsauxapplicationsdu btimentDterminationducomportementsouscharge cyclique WrmedmmstoffefrdasBauwesenBestimmungdes VerhaltensunterzyklischerBelastung ThisEuropeanStandardwasapprovedbyCENon1August2003.

9、CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCE

10、Nmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria

11、,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:r

12、uedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13793:2003EEN13793:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Principle5 5 Apparatus .5 5.1 Testingmachine. 5 5.2 M

13、easurementofdisplacement . 5 5.3 Measurementofforce 6 5.4 Recordingdevice .6 6 Testspecimens 6 6.1 Dimensionsoftestspecimens .6 6.2 Numberoftestspecimens 6 6.3 Preparationoftestspecimens. .7 6.4 Conditioningoftestspecimens .7 7 Procedure .7 7.1 Testconditions . .7 7.2 Stressselection .7 7.3 Frequenc

14、yselection . .7 7.4 Numberofloadcycles. 8 7.5 Testprocedure .8 8 Calculationandexpressionofresults. 8 9 Accuracyofmeasurement. .10 10 Testreport 10EN13793:2003(E) 3 Foreword Thisdocument(EN13793:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC88,“Thermalinsulating materialsandproducts“,thesecretariato

15、fwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMarch2004,andconflictingnationalstandardsshallbewithdrawnatthelatestby March2004. ThisEuropeanStandardisoneofaseriesofstandardswhichspecifytestmethodsford

16、eterminingdimensionsand propertiesofthermalinsulatingmaterialsandproducts.Itsupportsaseriesofproductstandardsforthermal insulatingmaterialsandproductswhichderivefromtheCouncilDirectiveof21December1988onthe approximationoflaws,regulationsandadministrativeprovisionsoftheMemberStatesrelatingtoconstruct

17、ion products(Directive89/106/EEC)throughtheconsiderationoftheessentialrequirements. ThisEuropeanStandardhasbeendraftedforapplicationsinbuildingsbutmayalsobeusedinotherareaswhereit isrelevant. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesarebou

18、ndtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN13793:2003(E) 4 1Scope ThisEuropeanStandardspecifiesequipmentandpr

19、oceduresfordeterminingbehaviouroftestspecimensunder cyclicloadingconditions.Itisapplicabletothermalinsulatingproducts. Theselectionoftheconditionsofthetestshallbederivedfromthespecificrequirementsoftheintended application. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferen

20、ce,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedref

21、erencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN826, ThermalinsulatingproductsforbuildingapplicationsDeterminationofcompressionbehaviour. EN12085,ThermalinsulatingproductsforbuildingapplicationsDeterminationoflineardimensionsoftest specimens. 3 Termsanddefinitions F

22、orthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1 thickness, d s initialthicknessofthetestspecimen 3.2 compressivestress, s c compressiveforcereferredtotheinitialareaofthecrosssectionofthetestspecimen s min :Lowerstresslevelofoneloadcycle; s max :Upperstresslevelofoneload

23、cycle. 3.3 deformation, X reductioninthicknessofthetestspecimenequalto X i X 0 bothfor X i,min and X i,max X i,min :Reductioninthicknessofthetestspecimenunderthelowerstresslevel, s min ,atagivennumberofload cycles,i; X i,max :Reductioninthicknessofthetestspecimenundertheupperstresslevel, s max ,atag

24、ivennumberof loadcycles,i. 3.4 relativedeformation, e quotientofthedeformation Xofthetestspecimenanditsthickness d s 3.5 loadcycle cycleduringwhichthecompressiveforceisappliedtothetestspecimen,startingat s min ,tobeincreasedto s max andthenreducedbackto s min ,sothatthecycleofloadingandunloadingdesc

25、ribesatypeofsinewave,where s min isthebottomand s max isthetopofthewaveEN13793:2003(E) 5 4Principle Theverticaldeformationoftestspecimenssubjectedtorepetitiveloadcyclesisdetermined. 5Apparatus 5.1 Testingmachine Atestingmachineappropriatefortherangeofforceanddisplacementinvolvedwithtworigid,polished

26、,squareor circularplaneparallelplatesofwhichthelengthofoneside(orthediameter)isatleastaslargeasthetest specimenside(ordiagonal)tobetested.Oneoftheplatesshallbefixedandtheothermovablewithacentrally positionedballjoint,ifappropriate,toensurethatonlyaxialforceisappliedtothetestspecimen.Themovable plate

27、shallbecapableoffollowingasinusoidalwaveformdisplacementinaccordancewiththeconditionslaiddown inclause7andillustratedinFigure1. NOTE Theloadcycleshouldbeconsideredasasinusoidalwaveformifthedeviationoftheactualcurvecomparedtothe theoreticalsinecurveateverypointfollowingthetimeaxisdoesnotexceed5%ofthe

28、durationofonecycle. Key 1Displacement 2Time Figure1Illustrationofaloadcycle 5.2 Measurementofdisplacement Deviceforthemeasurementofthedisplacementfittedtothecompressiontestingmachinewhichallowscontinuous measurementofthedisplacementofthemovableplateorofthedistancebetweenthetwoplatesandwhich permitsr

29、eadingto5%or0,1mm,whicheveristhesmaller(see5.3).EN13793:2003(E) 6 5.3 Measurementofforce Sensorfittedtooneofthemachineplatestomeasuretheforceproducedbythereactionofthetestspecimenupon theplates.Thissensorshallbesuchthatitsowndeformationduringthecourseofthemeasuringoperationis negligiblecomparedwitht

30、hatbeingmeasuredorifnot,itshallbetakenintoaccountbycalculation.Thesensor shallallowthecontinuousmeasurementoftheforcepermittingreadingto3%. 5.4 Recordingdevice Deviceforthesimultaneousrecordingoftheforce, F ,andthedisplacement, X,whichprovidesacurveof Fasa functionof X. NOTE Itismostlikelythatonlyth

31、osemachines,whichincorporateahighprecisionalignedloadingframewithaservo hydraulicsystemcontrolandacomputercontrolledactuatorwillcomplywiththerequiredlevelofaccuracy. Themeasuringdevicesfordisplacementandforcearelikelytocompriseelectronictransducersandsensors.In ordertoachievethemaximumlevelofaccurac

32、y,itisdesirablethatalltestcontrolling,datagenerationanddata management(includingalloutputoftablesandplots)areconcentratedinonecomputersystem. 6 Testspecimens 6.1 Dimensionsoftestspecimens Thetestspecimensshallbeattheoriginalproductthickness.Thewidthofthetestspecimensshallnotbeless thanthethickness.P

33、roductswithintegrallymouldedskinswhichareretainedinuseshallbetestedwiththese skinsintact. Testspecimensshallnotbelayeredtoproduceagreaterthicknessfortesting. Testspecimensshallbesquarelycutandsquarewithrecommendedcrosssectionareasasfollows: 50mm50mmor 100mm100mmor 150mm150mmor 200mm200mmor 300mm300m

34、m. Thechoiceofdimensionstobeusedshallbeasspecifiedintherelevantproductstandard. IntheabsenceofaproductstandardoranyotherEuropeantechnicalspecificationthedimensionsoftest specimensmaybeagreedbetweenparties. ThelineardimensionsshallbedeterminedinaccordancewithEN12085withalimitdeviationof0,5%. Thetoler

35、anceonparallelismandflatnessbetweenthetwofacesofthetestspecimenshallnotbegreaterthan0,5 %ofthespecimensidewithamaximumof0,5mm. Ifthetestspecimensarenotflat,theyshallbegroundflatoranappropriatelevellinglayershallbeappliedto preparethesurfaceforthetest.Nosignificantdeformationshalloccurinthelevellingl

36、ayerduringthetest. Incasethatagypsumlevellinglayerisused,thedeterminationofthedimensionsshalloccurpriortothe applicationofthelayers. NOTE Theaccuracyofthetestresultisreducedifthetestspecimenshaveathicknessoflessthan20mm. 6.2 Numberoftestspecimens Thenumberoftestspecimensshallbeasspecifiedinthereleva

37、ntproductstandard.Intheabsenceofsucha specification,fivetestspecimensshallbeusedforeachstressselected.EN13793:2003(E) 7 NOTE IntheabsenceofaproductstandardoranyotherEuropeantechnicalspecificationthenumberoftestspecimens maybeagreedbetweenparties. 6.3 Preparationoftestspecimens Thetestspecimensshallb

38、ecutsothattheydonotincludeproductedges.Thetestspecimensshallbeprepared bymethodsthatdonotchangetheoriginalstructureoftheproduct.Anyskins,facingsand/orcoatingsshallbe retained. NOTE Specialmethodsofpreparation,whenneeded,aregivenintherelevantproductstandardoranyotherEuropean technicalspecification. 6

39、.4 Conditioningoftestspecimens Thetestspecimensshallbestoredforatleast6hat(235) C.Incaseofdisputetheyshallbestoredat (232) Cand(505)%relativehumidity,forthetimespecifiedintherelevantproductstandard,foraminimumof 6h. 7Procedure 7.1Test conditions Thetestshallbecarriedoutat(232) C.Incaseofdisputeitsha

40、llbecarriedoutat(232) Cand(505)% relativehumidity. 7.2Stress selection Thetestiscarriedoutatoneormoredifferentstresses. Thedifferentstresses, s max ,forthecyclicloadinvestigationshallbebasedoneitherthecompressivestrength, s m , orthecompressivestressat10%deformation, s 10 ,measuredinaccordancewithEN

41、826,andshallbecalculated asfollows: s max =0,15 s m or s max =0,15 s 10 s max =0,20 s m or s max =0,20 s 10 s max =0,25 s m or s max =0,25 s 10 s max =0,30 s m or s max =0,30 s 10 s max =0,35 s m or s max =0,35 s 10 Ifappropriateothervaluesof s max maybechosen. Thecorrespondingstresses s min shallbe

42、5%oftherespective s max . 7.3 Frequencyselection Thetestiscarriedoutatafrequencywithintherangeof0,5Hzto10Hz. Thefrequencyshallbeselectedsothatanypossibleincreaseofthetemperatureinthecenterofthetestspecimen willnotaffectthetestresult. Theloadcycle,followingasinusoidalwaveform,isappliedatarequirednumb

43、erofcyclespersecond.The frequencyofthewaveshallbegivenintherelevantproductstandardormaybeagreeduponbetweenparties withintherangegivenabove. NOTE Differentfrequenciescanleadtodifferentresults.EN13793:2003(E) 8 7.4 Numberofloadcycles Thenumberofloadcyclesshallbesuchthat: therelativedeformationofthetestspecimen,atthemaximumstress,reaches5%or failureif