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
38、S EN 14158:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions B
39、ritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity
40、 while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that sub
41、scribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from th
42、e BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, Eur
43、opean and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. E
44、mail: infobsi-. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-. Information regarding onli
