EN 12860:2001

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lepila na osnovi mavca za bloke iz mavca - Definicije, zahteve in metode preskušanjaGipskleber für Gips-Wandbauplatten - Begriffe, Anforderungen und PrüfverfahrenLiants-colles a base de plâtre pour carreaux de plâtre - Définitions, spécifications et méthodes d'essaiGypsum based adhesives for gypsum blocks - Definitions, requirements and test methods91.100.10Cement. Mavec. Apno. MaltaCement. Gypsum. Lime. Mortar83.180LepilaAdhesivesICS:Ta slovenski standard je istoveten z:EN 12860:2001SIST EN 12860:2002en01-april-2002SIST EN 12860:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12860June 2001ICS 83.180English versionGypsum based adhesives for gypsum blocks - Definitions,requirements and test methodsLiants-colles à base de plâtre pour carreaux de plâtre -Définitions, spécifications et méthodes d'essaiGipskleber für Gips-Wandbauplatten - Definitionen,Anforderungen und PrüfverfahrenThis European Standard was approved by CEN on 16 April 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12860:2001 ESIST EN 12860:2002

Page 2EN 12860:2001ContentspageForeword.31Scope.52Normative references.53Terms and definitions.64Symbols and abbreviations.65Requirements.65.1Fire behaviour.65.2Direct airborne sound insulation.65.3Thermal properties.65.4Release of dangerous substances.75.5Maximum particle size.75.6Sulphur trioxide (SO3) content.75.7Initial setting time.75.8Bond strength.75.9pH.76Test methods.86.1General.86.2Determination of particle size.86.3Determination of the sulphur trioxide content.86.4Determination of the water/product ratio.86.5Preparation of the adhesive for testing.86.6Determination of the initial setting time.86.7Determination of the bond strength.86.8pH measurement.96.9Test reports.107Evaluation of conformity.107.1General.107.2Initial type testing.117.3Factory production control testing.118Marking, labelling and packaging.11Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EUConstruction Products Directive.12SIST EN 12860:2002

Page 3EN 12860:2001ForewordThis European Standard has been prepared by Technical Committee CEN/TC 241 "Gypsum and gypsum basedproducts", the secretariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by December 2001, and conflicting national standards shall be withdrawn at the latestby March 2003.This European Standard has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.SIST EN 12860:2002

Page 4EN 12860:2001IntoductionFigure 1 shows the relationship between this standard and the package of standards prepared to support the familyof gypsum products.Figure 1 - Family of gypsum binders and gypsum productsRaw gypsumGypsum binders forfurther dry powderproducts(A1)Gypsum binders fordirect use on site(A2)Gypsum binders forfurther processing e.g.- blocks- plasterboards- ceiling elements- etc.(A3)Gypsum plasters(B1 to B8)Gypsum plasters forspecial purposes(C1 to C6)Other dry powderproducts e.g.- jointing- adhesives- compounds- etcproducts not covered by any European Standardproducts covered by a European Standardproducts covered by this European StandardSIST EN 12860:2002

Page 5EN 12860:20011 ScopeThis European Standard specifies the characteristics and performance of gypsum based adhesives used forassembling gypsum blocks or other gypsum units. It covers the following performance characteristics related to theessential requirements : reaction to fire ; release of dangerous substances ;measured according to the corresponding European test methods.It defines the reference tests for technical specifications.It provides for the evaluation of conformity of the product to this European Standard.This European Standard covers also additional technical characteristics that are of importance for the use andacceptance of the product by the Building Industry : direct airborne sound insulation ; bond strength ; thermal resistance calculated with thermal conductivity values from the Table 1 (see 5.3.2).2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 12524, Building materials and products – Hygrothermal properties – Tabulated design values.EN ISO 140-3, Acoustics – Measurement of sound insulation in buildings and of building elements – Part 3 :Laboratory measurements of airborne sound insulation of building elements (ISO 140-3:1995).EN ISO 717-1, Acoustics – Rating of sound insulation in buildings and of building elements – Part 1 : Airbornesound insulation (ISO 717-1:1996).EN ISO 6946, Building components and building elements – Thermal resistance and thermal transmittance –Calculation method (ISO 6946:1996).prEN 12859 : 2000, Gypsum blocks – Definitions, requirements and test methods.prEN 13279-2 : 1998, Gypsum and gypsum based building plasters – Part 2 : Test methods.prEN 13501-1 : 2000, Fire classification of construction products and building elements – Part 1 :Classificationusing data from reaction to fire tests.EN ISO 10456,
Building materials and products — Procedure for determining
declared and design thermal values.(ISO 10456:1999)SIST EN 12860:2002

Page 6EN 12860:20013 Terms and definitionsFor the purposes of this European Standard, the following term and definition apply :3.1gypsum based adhesivemixture of calcium sulphate and additives in which the calcium sulphate is the main component4 Symbols and abbreviationsFor the purposes of this European standard, the following symbols apply :
gross dry density in kilograms per cubic metre (kg/m3);
thermal conductivity in Watts per metre per kelvin (W/m.K); 23-50 thermal conductivity of the hardened plaster when in equilibrium at 23 °C and 50 % relative humidity inWatts per metre per Kelvin (W/m.K).5 Requirements5.1 Fire behaviour5.1.1 Reaction to fireGypsum based adhesives for gypsum blocks are classified in Euroclass A1 (no contribution to fire) without testingwhen they contain less than 1 % by weight or volume (whichever is the more onerous) of organic material.If the products contain more than 1 % by weight or volume of organic material, they shall be determined andclassified in accordance with prEN 13501-1 : 2000.5.1.2 Fire resistanceGypsum based adhesives (a mixture of calcium sulphate and additives in small quantities) for gypsum blocks donot modify the fire resistance of the work in which it is used.5.2 Direct airborne sound insulationWhen relevant, the direct airborne sound insulation of partitions or wall linings assembled using gypsum basedadhesives shall be determined according to EN ISO 140-3 and EN ISO 717-1.5.3 Thermal properties5.3.1 Thermal resistanceWhen required, the thermal resistance of elements of construction is calculated using the formula given inEN ISO 6946. For adhesives, the values of thermal conductivity necessary for this calculation are given in 5.3.2.5.3.2 Thermal conductivityDesign values of the thermal conductivity of gypsum plaster used in the manufacture of gypsum based adhesivesare given in Table 1. The same values can be used for adhesives.SIST EN 12860:2002

Page 7EN 12860:2001Table 1 — Design values of thermal conductivity of gypsum plaster in kg/m323-50 in W/(m.K)6000,187000,228000,269000,301 0000,341 1000,391 2000,431 3000,471 4000,511 5000,54The values given in Table 1 are taken from EN 12524. The reference values concern dry material used inside.When the material is wet, adjust these values using EN ISO 10456.5.4 Release of dangerous substancesNOTE
For CE marking purposes, see Annex ZA.5.5 Maximum particle sizeThe residue on a 200 m sieve shall not be greater than 10 % by weight when determined in accordance with 3.2of prEN 13279-2 : 1998.No residue shall be left on a 400 m sieve.5.6 Sulphur trioxide (SO3) contentThe SO3 content of the powder shall not be less than 30 % when tested in accordance with 3.3 of prEN 13279-2 :1998.5.7 Initial setting timeThe initial setting time shall be determined in accordance with 4.2 of prEN 13279-2 : 1998. The initial setting timeshall be greater than 45 min.5.8 Bond strengthThe bond strength of the adhesive, when determined as described in 6.7, shall be such that failure occurs in thegypsum block, in at least three of the four tests.5.9 pHThe pH of the product after hydration, when determined in accordance with 6.8 shall be :6,5
pH
10,5.SIST EN 12860:2002
Page 8EN 12860:20016 Test methods6.1 GeneralGeneral conditions of tests as well as test methods which are common to gypsum plasters and gypsum basedadhesives are described in prEN 13279-2:1998.The water used for the reference tests and chemical analysis shall be deionised or distilled, boiled and coolded.6.2 Determination of particle sizeThe test method is describ
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