EN 301-2017 en Adhesives phenolic and aminoplastic for load-bearing timber structures - Classification and performance requirements.pdf

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1、Adhesives, phenolic and aminoplastic, for load-bearing timber structures - Classification and performance requirementsBS EN 301:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 301 November 2017 ICS 83.180 Super

2、sedes EN 301:2013English Version Adhesives, phenolic and aminoplastic, for load-bearing timber structures - Classification and performance requirements Adhsifs de nature phnolique et aminoplaste, pour structures portantes en bois - Classification et exigences de performance Klebstoffe, Phenoplaste u

3、nd Aminoplaste, fr tragende Holzbauteile - Klassifizierung und Leistungsanforderungen This European Standard was approved by CEN on 16 July 2017. 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

4、 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).

5、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, Cyp

6、rus, 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and U

7、nited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.

8、EN 301:2017 ENational forewordThis British Standard is the UK implementation of EN 301:2017. It supersedes BS EN 301:2013, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives.A list of organizations represented on this committee can be ob

9、tained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 90755 5ICS 83.180; 91.080.20Comp

10、liance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 301:2017EUROPE

11、AN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 301 November 2017 ICS 83.180 Supersedes EN 301:2013English Version Adhesives, phenolic and aminoplastic, for load-bearing timber structures - Classification and performance requirements Adhsifs de nature phnolique et aminoplaste, pour structures portant

12、es en bois - Classification et exigences de performance Klebstoffe, Phenoplaste und Aminoplaste, fr tragende Holzbauteile - Klassifizierung und Leistungsanforderungen This European Standard was approved by CEN on 16 July 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations

13、 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. Thi

14、s 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 memb

15、ers 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, Portug

16、al, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in

17、 any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 301:2017 EBS EN 301:2017EN 301:2017 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Classification . 7 5 Requirements 10 5.1 General . 10 5.2

18、Tensile shear test . 11 5.3 Delamination test . 12 5.4 Fibre damage test . 12 5.5 Shrinkage test 13 5.6 Static load test . 13 5.7 Type testing of separate application finger joint adhesive . 13 6 Working properties of the adhesive 13 6.1 General . 13 6.2 Physical properties of adhesive prepared for

19、use . 14 6.3 Use of the adhesive 14 7 Marking and labelling . 14 Annex A (normative) Delamination test for finger joints with separate spread of adhesive and hardener . 15 A.1 Production of the specimens 15 A.2 Testing 15 A.3 Expression of results . 16 Bibliography . 17 BS EN 301:2017EN 301:2017 (E)

20、 3 European foreword This document (EN 301:2017) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secretariat of which is held by UNE. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the lat

21、est by May 2018, and conflicting national standards shall be withdrawn at the latest by May 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. Thi

22、s document supersedes EN 301:2013. Compared to EN 301:2013 the following changes have been made: a) EN 15416-2 is replaced by EN 302-8, Adhesives for load-bearing timber structures Test methods - Part 8: Static load test of multiple bond line specimens in compression shear; b) adhesives tested for w

23、orking properties according to Clause 6 will be marked with a “w” in the end of their designation code; c) provisions for delamination tests on preservative treated softwood, hardwood and other conifers species; d) provisions for what to test when systems are used with a range of hardener dosage; e)

24、 provisions for small modifications of already tested adhesives; f) a new Clause 7 Marking and labelling has been introduced; g) Annex A: Delamination test for finger joints more precisely described; h) Annex A: Expression of results included. According to the CEN-CENELEC Internal Regulations, the n

25、ational standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

26、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 301:2017EN 301:2017 (E) 4 Introduction This document is one of a series of standards dealing with phenolic and aminoplastic adhes

27、ives for use with timber structures, and is published in support of product standards for load-bearing timber structures in connection with EN 1995-1-1 Eurocode 5: Design of timber structures - Part 1-1: General Common rules and rules for buildings. The series consists of one standard for classifica

28、tion and performance requirements (EN 301), five test methods (EN 302-1, EN 302-2, EN 302-3 and EN 302-4 and EN 302-8) used to assess the performance of adhesives after specified heat and humidity treatments, and three test methods (EN 302-5, EN 302-6 and EN 302-7) to characterize the working proper

29、ties of the adhesive. 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

30、 health practices and to ensure compliance with any regulatory conditions. ENVIRONMENTAL STATEMENT It is understood that some of the material permitted in this standard may have a negative environmental impact. As technological advantages lead to acceptable alternatives for these materials, they wil

31、l be eliminated from this standard to the greatest extent possible. At the end of the test, the user of the standard should take care to carry out an appropriate disposal of the wastes, according to local regulations. BS EN 301:2017EN 301:2017 (E) 5 1 Scope This European Standard establishes a class

32、ification for phenolic and aminoplastic polycondensation adhesives according to their suitability for use for load-bearing timber structures in defined climatic exposure conditions, and specifies performance requirements for such adhesives for the factory manufacture or factory-like manufacturing co

33、nditions of load-bearing timber structures only. This European Standard only specifies the performance of an adhesive for use in an environment corresponding to the defined conditions. The performance requirements of this European Standard apply to the adhesive only, not to the timber structure. Thi

34、s European Standard does not cover the performance of adhesives for on-site gluing (except for factory-like conditions) nor the production of wood-based panels, except solid wood panels, or modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. such as acetyla

35、ted wood, heat treated wood and polymer impregnated wood. This European Standard is primarily intended for the use of adhesive manufacturers and for the use in timber structures bonded with adhesives, to assess or control the quality of adhesives. The requirements apply to the type testing of the ad

36、hesives. Production control activities are outside the scope of this European Standard. Adhesives meeting the requirements of this European Standard are adequate for use in a load-bearing timber structure, provided that the bonding process has been carried out according to an appropriate product sta

37、ndard. 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 an

38、y amendments) applies. EN 302-1, Adhesives for load-bearing timber structures - Test methods - Part 1: Determination of longitudinal tensile shear strength EN 302-2, Adhesives for load-bearing timber structures - Test methods - Part 2: Determination of resistance to delamination EN 302-3, Adhesives

39、for load-bearing timber structures - Test methods - Part 3: Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength EN 302-4, Adhesives for load-bearing timber structures - Test methods - Part 4: Determination of the effects of

40、 wood shrinkage on the shear strength EN 302-8, Adhesives for load-bearing timber structures - Test methods - Part 8: Static load test of multiple bond line specimens in compression shear EN 408, Timber structures Structural timber and glued laminated timber Determination of some physical and mechan

41、ical properties EN 923, Adhesives - Terms and definitions EN 1245, Adhesives - Determination of pH EN 1995-1-1:2004, Eurocode 5: Design of timber structures - Part 1-1: General - Common rules and rules for buildings BS EN 301:2017EN 301:2017 (E) 6 EN 12092, Adhesives - Determination of viscosity EN

42、13183-2, Moisture content of a piece of sawn timber - Part 2: Estimation by electrical resistance method EN 13183-3, Moisture content of a piece of sawn timber - Part 3: Estimation by capacitance method EN 14080, Timber structures - Glued laminated timber and glued solid timber - Requirements 3 Term

43、s and definitions For the purposes of this document, the terms and definitions given in EN 923 and the following apply. 3.1 aminoplastic resin thermosetting synthetic resin derived from a condensation reaction of the NH groups or NH2 groups of amines or amides with aldehydes 3.2 phenolic resin therm

44、osetting synthetic resin derived from a condensation reaction of a phenol with an aldehyde 3.3 polycondensation adhesive adhesive mixture made from a resin formed by a polymerisation reaction involving the elimination of water, usually with a hardener Note 1 to entry: Such adhesives usually also con

45、tain extenders and/or fillers. 3.4 service class 1 climatic conditions characterised by a moisture content in the materials corresponding to a temperature of 20 C and the relative humidity of the surrounding air only exceeding 65 % for a few weeks per year Note 1 to entry: In service class 1, which

46、comprises typical indoor conditions, the average moisture content in most softwoods will not exceed 12 %. SOURCE: EN 1995-1-1:2004, 2.3.1.3 3.5 service class 2 climatic conditions characterised by a moisture content in the materials corresponding to a temperature of 20 C and the relative humidity of

47、 the surrounding air only exceeding 85 % for a few weeks per year Note 1 to entry: In service class 2, to which most covered exterior conditions belong, the average moisture content in most softwoods will not exceed 20 %. SOURCE: EN 1995-1-1:2004, 2.3.1.3 BS EN 301:2017EN 301:2017 (E) 7 3.6 service

48、class 3 climatic conditions leading to higher moisture contents than in service class 2 Note 1to entry: Exterior conditions typically belong to service class 3. SOURCE: EN 1995-1-1:2004, 2.3.1.3, modified Note 1 to entry has been added. 3.7 glue line adhesive layer between the wood members 3.8 thick

49、 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. 3.9 close contact glue line glue line of thickness maximum 0,1 mm Note 1 to entry: Close contact glue line is achieved by pressing together two plane wood members with a clamping pressure of (0,8 0,1) N/2mm without grooves, spacers or similar devices. 4 Classification Adhesives (gener