EN 302-1:2013
(Main)Adhesives for load-bearing timber structures - Test methods - Part 1: Determination of longitudinal tensile shear strength
Adhesives for load-bearing timber structures - Test methods - Part 1: Determination of longitudinal tensile shear strength
This European Standard specifies a method for determining the shear strength of adhesive bonds in close contact glue line and thick glue line.
It is suitable for the following applications:
a) for assessing the compliance of adhesives with EN 301, EN 15425 and prEN 16254;
b) for assessing the suitability and quality of adhesives for load-bearing timber structures.
This test is intended primarily to obtain performance data for the classification of adhesives for load-bearing timber structures according to their suitability for use in defined climatic environments.
This method is not intended for use to provide for structural design, and does not necessarily represent the performance of the bonded member in service.
Klebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 1: Bestimmung der Längszugscherfestigkeit
Diese Europäische Norm legt ein Verfahren zur Bestimmung der Scherfestigkeit von Klebstoffverbindungen in dünnen und dicken Klebstofffugen fest.
Sie gilt für folgende Anwendungen:
a) zur Beurteilung der Übereinstimmung von Klebstoffen mit EN 301, EN 15425 und prEN 16254;
b) zur Beurteilung der Eignung und Qualität von Klebstoffen für tragende Holzbauteile.
Diese Prüfung ist hauptsächlich dafür vorgesehen, Leistungsdaten für die Klassifizierung von Klebstoffen für tragende Holzbauteile entsprechend ihrer Eignung zur Verwendung in festgelegten klimatischen Umgebungen zu erhalten.
Dieses Verfahren ist nicht dafür vorgesehen, Bemessungswerte bereitzustellen und gibt nicht zwangsläufig die Leistungsfähigkeit des verklebten Bauteils im Gebrauch wieder.
Adhésifs pour structures en bois - Méthodes d'essais - Partie 1: Détermination de la résistance du joint au cisaillement en traction longitudinale
La présente Norme européenne décrit une méthode de détermination de la résistance au cisaillement des adhésifs en joint mince et en joint épais.
Elle concerne les applications suivantes :
a) évaluation de la conformité des adhésifs à l'EN 301, à l'EN 15425 et au prEN 16254 ;
b) évaluation de l'adéquation et de la qualité des adhésifs pour les structures portantes en bois.
Le présent essai est principalement destiné à obtenir des données de performances en vue de la classification des adhésifs pour les structures portantes en bois en fonction de leur aptitude à l'utilisation dans des environnements climatiques définis.
La présente méthode n'est pas destinée à fournir des données relatives au dimensionnement des structures et ne représente pas nécessairement les performances de l'élément collé dans son application.
Lepila za nosilne lesene konstrukcije - Preskusne metode - 1. del: Ugotavljanje vzdolžne natezne strižne obremenitve
Ta evropski standard določa metodo za ugotavljanje strižne obremenitve strjenega lepila pri zelo tankem in pri debelem sloju lepljenega stika.
Metoda se uporablja:
a) za oceno skladnosti lepil s standardi EN 301, EN 15425 in prEN 16254;
b) za oceno ustreznosti in kakovosti lepil za nosilne lesene konstrukcije.
Ta preskus je namenjen zlasti pridobivanju podatkov o lastnostih za razvrstitev lepil za nosilne lesene konstrukcije glede na njihovo ustreznost za uporabo v opredeljenih podnebnih okoljih. Ta metoda ni namenjena za zagotavljanje podatkov za konstrukcijsko zasnovo, pri čemer ne predstavlja nujno lastnosti zlepljenega elementa v uporabi.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lepila za nosilne lesene konstrukcije - Preskusne metode - 1. del: Ugotavljanje vzdolžne natezne strižne obremenitveKlebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 1: Bestimmung der LängszugscherfestigkeitAdhésifs pour structures en bois - Méthodes d'essais - Partie 1: Détermination de la résistance du joint au cisaillement en traction longitudinaleAdhesives for load-bearing timber structures - Test methods - Part 1: Determination of longitudinal tensile shear strength91.080.20Lesene konstrukcijeTimber structures83.180LepilaAdhesivesICS:Ta slovenski standard je istoveten z:EN 302-1:2013SIST EN 302-1:2013en,de01-maj-2013SIST EN 302-1:2013SLOVENSKI
STANDARDSIST EN 302-1:20041DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 302-1
March 2013 ICS 83.180 Supersedes EN 302-1:2004English Version
Adhesives for load-bearing timber structures - Test methods - Part 1: Determination of longitudinal tensile shear strength
Adhésifs pour structures en bois - Méthodes d'essais - Partie 1: Détermination de la résistance du joint au cisaillement en traction longitudinale
Klebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 1: Bestimmung der Längszugscherfestigkeit This European Standard was approved by CEN on 5 February 2013.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 302-1:2013: ESIST EN 302-1:2013
Part 1: Determination of longitudinal tensile shear strength Part 2: Determination of resistance to delamination Part 3: Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength Part 4: Determination of the effects of wood shrinkage on the shear strength Part 5: Determination of maximum assembly time under referenced conditions Part 6: Determination of the minimum pressing time under referenced conditions Part 7: Determination of the working life under referenced conditions EN 15416, Adhesives for load bearing timber structures other than phenolic and aminoplastic — Test methods Part 2: Static load test of multiple bondline specimens in compression shear Part 3: Creep deformation test at cyclic climate conditions with specimens loaded in bending shear Part 4: Determination of open assembly time for one component polyurethane adhesives Part 5: Determination of conventional pressing time Safety statement Persons using this document should be familiar with the normal laboratory practice, if applicable. This document cannot address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any regulatory conditions. SIST EN 302-1:2013
It is suitable for the following applications: a) for assessing the compliance of adhesives with EN 301, EN 15425 and prEN 16254; b) for assessing the suitability and quality of adhesives for load-bearing timber structures. This test is intended primarily to obtain performance data for the classification of adhesives for load-bearing timber structures according to their suitability for use in defined climatic environments. This method is not intended for use to provide for structural design, and does not necessarily represent the performance of the bonded member in service. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 301, Adhesives, phenolic and aminoplastic, for load-bearing timber structures — Classification and performance requirements EN 923:2005+A1:2008, Adhesives — Terms and definitions ISO 5893, Rubber and plastics test equipment — Tensile, flexural and compression types (constant rate of traverse) — Specification ISO 6344-2, Coated abrasives — Grain size analysis — Part 2: Determination of grain size distribution of macrogrits P12 to P220
3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 923:2005+A1:2008 and the following apply. 3.1
glue line adhesive layer between the wood members 3.2 thick glue line glue line of nominal thickness in the range of 0,3 mm to 2,0 mm at the time of bonding Note 1 to entry: Thick glue lines are achieved by using spacers, grooves or similar devices with a thickness of 0,3 mm to 2,0 mm when two plain members are glued together. 3.3 close contact glue line glue line of thickness maximum 0,1 mm SIST EN 302-1:2013
bonded test surface, in mm²; fv
shear strength, in N/mm²; Fmax
the applied load at failure, in N;
h
depth of groove for thick glue line, 0,3 mm, 0,5 mm, 1,0 mm or 2,0 mm;
α
angle between the annual growth rings and bonded surface, 30° to 85°; l1
length of test pieces, (150 ± 5) mm; l2
length of overlap (length of tested surface), (10,0 ± 0,1) mm; l3
width of groove for thick glue line, ≈ 14 mm; b
width of test pieces, (20,0 ± 0,1) mm; t
thickness of panel for close contact glue line, (5,0 ± 0,1) mm;
t + h
thickness of panel outside the grooves for thick glue line, in mm. 5 Principle The shear strength of adhesive bonds is determined by applying a longitudinal tensile force to a single lap joint with close contact or thick glue lines between two rectangular wooden adherends made of beech (Fagus sylvatica L). The joints are loaded to rupture. 6 Apparatus The testing machine shall be either: a) capable of maintaining a constant rate of loading of (2,0 ± 0,5) kN/min; or b) capable of maintaining constant crosshead speed as described in ISO 5893. The jaws of the testing machine shall grip the test pieces firmly and prevent slippage during loading. The grip shall be fixed in hinged manner. 7 Method 7.1 Preparation of panels By planing, prepare a sufficient number (see 7.4) of panels to be bonded, with or without 14 mm wide grooves as shown in Figure 1, from an untreated straight-grained board of beech (Fagus sylvatica L.) with a density of bq00 ± 50) kg/m³ at b12 ± 1) % moisture content. bnsure that the angle, ., between the growth rings and the surface to be bonded, see Figure 3 a), is between 30° and 85°. SIST EN 302-1
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