1、BRITISH STANDARD BS EN 1015-21:2002 Methods of test for mortar for masonry Part 21: Determination of the compatibility of one-coat rendering mortars with substrates The European Standard EN 1015-21:2002 has the status of a British Standard ICS 91.100.10 BS EN 1015-21:2002 This British Standard, havi
2、ng been prepared under the direction of the Building and Civil Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 20 December 2002 BSI 20 December 2002 ISBN 0 580 41020 X National foreword This British Standard is the
3、 official English language version of EN 1015-21:2002. EN 1015-21 is the subject of transitional arrangements agreed under the Commission mandate. The Member States have agreed a nominal transition period for the co-existence of the future “harmonized” European Standards and their corresponding nati
4、onal standard(s). It is intended that this period will comprise a nominal nine month period during which any required changes to national regulations are to be made, followed by a further nominal twelve month period for the implementation of CE marking. At the end of this co-existence period, the na
5、tional standard(s) will be withdrawn. There is no corresponding UK national standard. Because EN 1015-21 is a supporting standard to the forthcoming “harmonized” European product standard specification EN 998-1 (Specification for mortar for masonry Part 1: Rendering and plastering mortar) then the a
6、bove-mentioned co-existence period will commence upon the date of availability of EN 998-1. An estimation of the date of commencement of this period cannot yet be given. The UK participation in its preparation was entrusted by Technical Committee B/519, Masonry and associated testing, to Subcommitte
7、e B/519/2, Mortar, 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 implement international or European publications referred to in this document may be found in the BSI
8、 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 not purport to include all the necessary provisions of a contract. Users are responsible for i
9、ts 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 committee any enquiries on the interpretation, or proposals for change, and keep the UK intere
10、sts 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 2 to 9 and a back cover. The BSI copyright date displayed in this document indicates when the d
11、ocument was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN101521 December2002 ICS91.100.10 Englishversion MethodsoftestformortarformasonryPart21:Determination ofthecompatibilityofonecoatrenderingmortarswith substrates Mthodesd
12、essaidesmortierspourmaonneriesPartie 21:Dterminationdelacompatibilitdesmortiersdenduit extrieurmonocouchesavecleurarmature PrfverfahrenfrMrtelfrMauerwerkTeil21: BestimmungderVertrglichkeitvonEinlagenputzmrteln mitUntergrnden ThisEuropeanStandardwasapprovedbyCENon6July2002. CENmembersareboundtocomply
13、withtheCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStand
14、ardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Den
15、mark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allright
16、sofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN101521:2002EEN101521:2002(E) 2 Contents page Foreword 3 1 Scope . 4 2 Normativereferences . 4 3 Principle. 4 4 Apparatus 4 5 Samplingandsamplepreparation. . 6 6 Preparationandstorageoftestspecimens. 7 7 Procedure
17、8 8 Expressionoftheresults. 8 9 Testreport. 9EN101521:2002(E) 3 Foreword Thisdocument(EN101521:2002)hasbeenpreparedbyTechnicalCommitteeCEN/TC 125 “Masonry“,thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofan identicaltextorbyendorsem
18、ent,atthelatestbyJune2003,andconflictingnationalstandardsshall bewithdrawnatthelatestbySeptember2004. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthe followingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Ge
19、rmany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta, Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN101521:2002(E) 4 1Scope ThisEuropeanStandardspecifiesatestmethodfordeterminingthecompatibilityofOneCoat(OC) renderingmortarswithgivensubstrates. Theevaluationisbasedonthedet
20、erminationoftheadhesionstrengthandwaterpermeabilityofthe hardenedrenderappliedondefinedsubstrates,afterexposuretoweatheringcycles. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromother publications.Thesenormativereferencesarecitedattheappropriateplacesin
21、thetext,andthe publicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofany ofthesepublicationsapplytothisEuropeanStandardonlywhenincorporatedinitbyamendmentor revision.Forundatedreferencesthelatesteditionofthepublicationreferredtoapplies(including amendments). EN77211,Me
22、thodsoftestformasonryunitsPart11:Determinationofwaterabsorptionof aggregateconcrete,manufacturedstoneandnaturalstonemasonryunitsduetocapillaryactionand theinitialrateofwaterabsorptionofclaymasonryunits. prEN9981, SpecificationformortarformasonryPart1:Renderingandplasteringmortar. EN10152,Methodsofte
23、stformortarformasonryPart2:Bulksamplingofmortarsand preparationoftestmortars. EN10153, MethodsoftestformortarformasonryPart3:Determinationofconsistenceoffresh mortar(byflowtable). EN10159, MethodsoftestformortarformasonryPart9:Determinationofworkablelifeand correctiontimeoffreshmortar. EN101512:2000
24、,MethodsoftestformortarformasonryPart12:Determinationofadhesive strengthofhardenedrenderingandplasteringmortarsonsubstrates. 3Principle Onecoatrenderingmortarsareappliedtosubstratesspecifiedbythemanufacturer.Thehardened specimensaretestedafterconditioningconsistingofthermalcyclingandhumidification/t
25、hermal cycling. Thespecimensaresubjectedtotwotestsasfollows: a) waterpermeabilitybytheapplicationofaspecifiedheadofwatertotherenderedsurface; b) adhesivestrengthusingthepullofftestofEN101512. 4Apparatus 4.1 Apparatusfordeterminationofwaterpermeability(seeFigure1) 4.1.1 Metalcone withabasediameterof2
26、00mm,and100mmhigh.EN101521:2002(E) 5 4.1.2 Closedgraduatedglasstube (ortransparentplasticsmaterial)withaminimumcapacityof 1landwith1mlgraduations. NOTE Alargeburettecanbesuitable. 4.1.3Device forfixingthegraduatedglasstube. Dimensionsinmillimetres 1 2 3 4 5 6 7 100 Key 1 Deviceformaintainingaconstan
27、tlevelandformeasuringthewaterflow 2 Constantlevel 3W a t e r 4 Cone200mm(atthebottom) 5 Sealant 6 Render 7 Substrate Figure1WaterpermeabilityapparatusEN101521:2002(E) 6 4.2 Apparatusfordeterminationofadhesivestrength(inaccordancewith EN101512) 4.3 Apparatusfortheconditioningofthetestspecimens 4.3.1
28、Deepfreezecabinet capableofmaintainingaconstanttemperatureof15C1C. 4.3.2 InfraRedlampdevice capableofmaintainingaverticalrenderedsurfaceat60C2C. 4.3.3 Largewaterproofcontainer tomaintain15mmofliquidwater. 4.3.4 Waterresistantwedges 10mmthicktosupporttestspecimens. 4.3.5 Thermocouple 5 Samplingandsam
29、plepreparation 5.1General Thefreshmortarforthistestshallhaveaminimumvolumeof1,5loratleast1,5timesthequantity neededtoperformthetest,whicheveristhegreater,andshalleitherbeobtainedbyreductionofthe bulktestsample(seeEN10152)usingasampledividerorbyquarteringorbypreparationfrom waterandtheotherconstituen
30、tsinthelaboratory. 5.2 Laboratorypreparedmortars Asampleofatleast25kg(oronebag)ofthemortarinpowderformshallbetakeninaccordancewith EN10152.Theamountofwaterrequiredforpreparingthemortarshallbeasstatedbythe manufacturer.Ifarangeofvaluesisgiven,themeanvalueshallbeused.Themixingofthemortar shallbedonewi
31、ththemixingequipmentandthemixingtime(s)specifiedbythemortarproducerfor siteuses.Thelengthofmixingperiodshallbemeasuredfromthemomentalltheconstituentsare introducedintothemixer.TheconsistenceofthemortarshallbedeterminedinaccordancewithEN 10153andreported. Thepreparedfreshmortarshallbeappliedontherele
32、vantsubstratesafteraminimumdelayof 10minfollowingthecompletionofmixingandinaccordancewiththeworkablelife(seeEN10159). 5.3 Mortars,otherthanlaboratorypreparedmortars Readytousemortars(factorymadewetmortarswhichareretarded),andprebatchedairlime/sand wetmortarswhennotgaugedwithhydraulicbinders,shallbeu
33、sedforspecimenpreparationwithin theirspecifiedworkablelife. Beforetesting,thebatchshallbegentlystirredbyhandusingatrowelorpaletteknifefor5sto10s tocounteractanyfalsesettingetc.,butwithoutanyadditionalmixingofthebatch. Theflowvalueofthemortarinthebulktestsampleshallbedeterminedinaccordancewith EN1015
34、3andreported.EN101521:2002(E) 7 6 Preparationandstorageoftestspecimens 6.1Substrates 6.1.1General Thetestshallbeperformedontwopanelseachofatleasttwotypesofsubstrateswhichrepresent theworstconditionappropriatetothefieldofusespecifiedbythemanufacturer,i.e.: a) “Strongsubstrate”:concretepanelasdescribe
35、dinclause6.1.2. b) “Weaksubstrate”:lightweightmasonryunit,e.g.autoclavedaeratedconcretemasonryunitorlow densityclayunit. Ifoneorbothoftheabovementionedsubstratesarenotpartoftheintendedfieldofuse,the manufacturershallperformthetestsonotherrelevanttypesofsubstratesandidentifythemasper clause9f). Recor
36、dthewaterabsorptionduetocapillaryactionoftheunitsusedinthesubstrate,ifknown,ortest inaccordancewithEN77211whereappropriate. 6.1.2 Concretesubstrates Whereaconcretesubstrateisspecified,applytherendertothemouldedfaceofa 300mm 300mm 40mmsubstrateminimum. 6.1.3Masonry substrates Whereamasonrysubstrateis
37、specified,applytherendertothesurfaceofapanelmadefromatleast onewholeandtwohalfmasonryunitslaidinthespecifiedmasonrymortar.Thefacesizeofthe specimenshallbeatleast400mm 400mm. 6.2Application Applythefreshmortarmixinaccordancewiththeproducersrecommendationsontwopanelsofeach typeofsubstrate,onein10mm1mm
38、,andtheotherin20mm1mmthickness. Keepthesubstrateverticalduringapplication. 6.3Conditioning Curethetestspecimensforatleast28d,instandardizedconditionsof20C2Cand 65%5%RH.Fixthethermocoupletothecentreofthefaceofthespecimen. Aftercuring,subjectthetestspecimenssuccessivelytotwoconditioningseriesoffourcyc
39、les. Betweenthetwoseries,storethemforatleast48hinstandardconditionsof20C2Cand 65%5%RH. 1 st series:fourheatingfreezingcycles 1) Heatbyinfraredradiation(see4.3.2)andmaintainasurfacetemperatureof60C2C, for8h 15min. 2) Placethespecimeninthestandardizedconditionsof20C2Cand65%5%RHfor 30min2min.EN101521:2
40、002(E) 8 3) Storeinadeepfreezecabinet(4.3.1)at15C1Cairtemperaturefor15h 15min. 4) Placethespecimeninthestandardizedconditionsof20C2Cand65%5%RHfor 30min2min. 2 nd series:fourhumidificationfreezingcycles 1) Partiallyimmersethetestspecimens( 4.3.3)withtherenderedsideinwaterat20C1C toadepthofapproximate
41、ly5mm,for8h 15min. 2) Placethespecimeninthestandardizedconditionsof20C2Cand65%5%RHfor 30min2min. 3) Storeinadeepfreezecabinetat15C1Cairtemperatureforabout15h 15min. 4) Placethespecimeninthestandardizedconditionsof20C2Cand65%5%RHfor 30min2min. Recordanydamagesustained(e.g.microcracks,failures.)during
42、eachconditioningcycle. 7Procedure 7.1Water permeability Measurethewaterpermeabilityonthetestspecimensafterconditioninginaccordancewith6.3. Maintainthetestspecimensinstandardconditionsof20C2Cand65%5%RH.for48h beforethewaterpermeabilitytestiscarriedout. OneachtestspecimenplacetheapparatusshowninFigure
43、1. Bondthemetalcone(4.1.1)totherenderedsurfaceusingawaterresistantsealant,e.g.wax, elastomericsiliconeorpolyurethane.Allowthesealanttoset. Maintainapermanentheadof100mmofwaterabovethesurfaceoftherender(seeFigure1). Recordthequantityofwater(ml)requiredtokeepthislevelconstantovera48hperiod(the measurementismadetonearest1ml). 7.2 Adhesivestrength Followingthewaterpermeabilitytestplacethespecimensinthestandardconditionsof2
