EN 14158-2004 en Natural stone test methods - Determination of rupture energy《天然石材试验方法 断裂力的测定》.pdf

1、BRITISH STANDARD BS EN 14158:2004 Natural stone test methods Determination of rupture energy The European Standard EN 14158:2004 has the status of a British Standard ICS 73.020; 91.100.15 BS EN 14158:2004 This British Standard was published under the authority of the Standards Policy and Strategy Co

2、mmittee on 27 April 2004 BSI 27 April 2004 ISBN 0 580 43705 1 National foreword This British Standard is the official English language version of EN 14158:2004. The UK participation in its preparation was entrusted to Technical Committee B/545, Natural stone, which has the responsibility to: A list

3、of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards

4、 Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard doe

5、s not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European devel

6、opments 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 8, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments is

7、sued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14158 April2004 ICS73.020;91.100.15 Englishversion NaturalstonetestmethodsDeterminationofruptureenergy MthodesdessaipourpierresnaturellesDtermination delnergiederupture PrfverfahrenfrNatursteinBestimmungder

8、 Bruchenergie ThisEuropeanStandardwasapprovedbyCENon16January2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnationa

9、l standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusas

10、t heofficial versions. 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,SwitzerlandandUnited

11、Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN14158:2004:EEN14158:2004(E) 2 Contents Foreword3

12、1 Scope 5 2 Principle5 3 Symbols 5 4 Apparatus .5 5 Preparationofthespecimens .5 6 Procedure .6 7 Expressionoftheresults. .6 8 Testreport . .7EN14158:2004(E) 3 Foreword Thisdocument(EN14158:2004)hasbeenpreparedbyTechnicalCommitteeCEN/TC246,“Naturalstones“,the secretariatofwhichisheldbyUNI. ThisEurop

13、eanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2004,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2004. Thisdraftstandardisoneoftheseriesofdraftstandardsfortestsonnaturalstone. Testmethodsfornaturalst

14、oneconsistofthefollowing: EN1925, NaturalstonetestmethodsDeterminationofwaterabsorptioncoefficientbycapillarity EN1926, NaturalstonetestmethodsDeterminationofcompressivestrength EN1936,NaturalstonetestmethodDeterminationofrealdensityandapparentdensityandoftotaland openporosity EN12370, Naturalstonet

15、estmethodsDeterminationofresistancetosaltcrystallisation EN12371, NaturalstonetestmethodsDeterminationoffrostresistance EN12372, NaturalstonetestmethodsDeterminationofflexuralstrength underconcentratedload EN12407, NaturalstonetestmethodsPetrographicexamination EN13161, NaturalstonetestmethodsDeterm

16、inationofflexuralstrengthunderconstantmoment EN13373, NaturalstonetestmethodsDeterminationofgeometriccharacteristicsonunits EN13755, NaturalstonetestmethodsDeterminationofwaterabsorptionatatmosphericpressure EN13919, NaturalstonetestmethodsDeterminationofresistancetoageingbySO 2 actioninthepresenceo

17、f humidity EN14066, NaturalstonetestmethodsDeterminationofresistancetoageingbythermalshock EN14147:2003, NaturalstonetestmethodsDeterminationofresistancetoageingbysaltmist prEN14157:2001, NaturalstonetestmethodsDeterminationoftheabrasionresistance EN14158:2003, NaturalstonetestmethodsDeterminationof

18、ruptureenergy EN14231, NaturalstonetestmethodsDeterminationoftheslipresistancebymeansofthependulumtester prEN14579:2002, NaturalstonetestmethodsDeterminationofsoundspeedpropagation prEN14580:2002, NaturalstonetestmethodsDeterminationofthestaticelasticmodulus prEN14581:2002, NaturalstonetestmethodsDe

19、terminationofthermalexpansioncoefficient NoexistingEuropeanStandardissuperseded.EN14158:2004(E) 4 AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Cyprus,CzechRepublic,Denmark, Estonia,Finlan

20、d,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta, Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EN14158:2004(E) 5 1Scope ThisEuropeanStandardspecifiesamethodfordeterminingtheenergyofrupturebyimpactofnaturalstones.

21、The standardcontainsprovisionforbothanidentificationtestandatechnologicaltest(forFPCoffinishedproducts). 2Principle Afterdryingeachspecimentoaconstantmasstheenergyofrupturebyimpactisdeterminedbythedroppingofa sphericalsteelballfromgivenincreasingheightsuntilthespecimenbreaks. 3Symbols m massofaspher

22、icalsteelball,inkilograms h i initialheightoffallofthesteelball,onthetestspecimen,inmillimetres h t heightoffallofthesteelballatthemomentofruptureofthecontrolspecimeninmillimetres h heightoffallofthesteelballatthemomentofruptureofthetestspecimeninmillimetres W energyofrupturebyimpact,injoules. 4Appa

23、ratus 4.1 Apparatusfordeterminingtheenergyofrupturebyimpact,consistingof: 4.1.1 Asphericalsteelball,havingamassof(1,00 0,01)kg. 4.1.2 Acontainerwithminimumdimensions400mmx400mmx150mm,inwhichabedofsilicasand(grain sizebetween2mmand0,076mm)of100mmminimumthicknessisplaced.Thecontainershallhaveasystemfo

24、r centringthespecimen. 4.1.3 Ametalcolumnof1,5mlength,graduatedevery50mm,attachedtothecontainer. 4.1.4 Aslidingframe,alsoattachedtothemetalcolumn,whichconsistsinadevicecapableofdroppingthesteel ballinaverticaldirection(Asystembasedonanelectromagnetcanbeused)(Figure1). 4.2 Aventilatedovencapableofmai

25、ntainingatemperatureof(70 5) C. 4.3 Aweighinginstrumentwithanaccuracyof0,1%ofthemasstobeweighed. 4.4 Abubblelevel. 5 Preparationofthespecimens 5.1Sampling Thesamplingisnottheresponsibilityofthetestlaboratory,exceptwherespeciallyrequested.Thespecimenswill beselectedfromahomogeneousbatch. Foridentific

26、ationtest,sixspecimensshallbeselected.EN14158:2004(E) 6 Fortechnologicaltest,thenumberofspecimensshallbeinaccordancewiththesizeofthecontrollot. 5.2 Testspecimens 5.2.1Surface finish Foridentificationtestthesurfacefinishofthefacesofthespecimensshallbesawn,honedorpolished. Fortechnologicaltestthesurfa

27、cefinishofthefacesofthespecimensshallbeasrequiredforapplication. 5.2.2Dimensions Foridentificationtestthespecimensshallberectangularprismsof200mmx200mmx30mm 1mm. Fortechnologicaltestthedimensionsofthespecimensshallbecommercialsizes. 5.2.3 Planesofanisotropy Fortheidentificationtestthemajorfacesofthe

28、specimensshallbeparalleltotheanisotropyplanes(e.g.bedding, foliation,etc.). Forthetechnologicaltesttheorientationofthemajorfacesofthespecimenswithrespecttotheanisotropyplanes shallbeasinuse. 5.3 Dryingthespecimens Thespecimensshallbedriedatatemperatureof(70 5) Ctoconstantmass. Thisisassumedtohavebee

29、nattained,whenthedifferencebetweentwosuccessiveweighingsatanintervalof(24 2)h,isnotgreaterthan0,1%ofthefirstofthetwomasses. 6Procedure Oneofthe6specimenstobetestedisselectedas“controlspecimen”.Itisputonthesandbedinapositionsothat thecentreofitsmajorfacesbeontheverticallinethroughthecentreoftheball.T

30、hebubblelevelisusedtocheck thatthetopishorizontal. Thesteelballisdroppedfromaninitialheightof100mm,measuredfromthelowestpointoftheball. Ifthespecimendoesnotbreaktheheightoffallisincreasedin50mmstepsuntilabreakisproduced.Theheight atwhichthecontrolspecimenbreaks( h t )isrecorded.Thetestshallberepeate

31、dwiththeotherfivespecimens beginningfromaninitialheightof h i i i =(h t 150)mmandminimumof100mm.Theheightofruptureforeach specimen, h,isrecorded. Ifaspecimenbreaksonthefirstimpactthentheresultshallberejected. 7 Expressionoftheresults Theenergyofrupture( W) shallbecalculatedforeachoneofthefivespecime

32、nsusingthefollowingformula: h g m W = whereEN14158:2004(E) 7 W istheenergyofrupture,injoulestothenearest1joule m isthemassoftheball,inkilograms g istheaccelerationofgravity(9,806m/s 2 ) h istheheightofruptureinmetreswithtwodecimalplaces. Ifanyspecimenshavebeenbrokenbythefirstimpactproducedfromtheini

33、tialheight, h i i i, , ,thisshallberecorded. 8 Testreport Thetestreportshallcontainthefollowinginformation: a) uniqueidentificationnumberofthereport; b) number,titleanddateofissueofthisEuropeanStandard; c) nameandaddressofthetestlaboratory,andtheaddresswherethetestwascarriedout,ifdifferentfromthe te

34、stlaboratory; d) nameandaddressoftheclient; e) itisresponsibilityoftheclienttosupplythefollowinginformation: petrographicnameofthestone; commercialnameofthestone; countryandregionofextraction; nameofthesupplier; directionofanyexistingplaneofanisotropy(ifrelevanttothetest)tobeclearly indicatedonthesa

35、mpleoroneachspecimenbymeansoftwoparallellines; nameofthepersonororganisationwhichcarriedoutthesampling; surfacefinishofthespecimens(ifrelevanttothetest); f) dateofdeliveryofthesampleorofthespecimens; g) datewhenthespecimenswereprepared(ifrelevant)andthedateoftesting; h) numberofspecimensinthesample;

36、 i) dimensionsofthespecimens; j) foreachspecimentheenergyofruptureinjoules; k) meanvalueoftheindividualvaluesofenergyofrupture; l) alldeviationsfromthestandardandtheirjustification; m)remarks. Thetestreportshallcontainthesignature(s)androle(s)oftheresponsible(s)forthetestingandthedateofissueof there

37、port.Itshallalsostatethatthereportshallnotbepartiallyreproducedwithoutthewrittenconsentofthetest laboratory.EN14158:2004(E) 8 Key 1Containerwithabedofsilicasand 2Steelball 3Graduatedmetalcolumn 4Electromagnet 5Testspecimen h heightoffall Figure1ApparatusfordeterminingtheenergyofrupturebyimpactblankB

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