BS EN 15416-1-2017 Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Long-term tension load test perpendicular to the bond line at varyl.pdf

1、BS EN 15416-1:2017Adhesives for load bearing timber structures other than phenolic and aminoplastic T e s t m e t h o d sPart 1: Long-term tension load test per-pendicular to the bond line at varying climate conditions with specimensperpendicular to the glue line (Glass house test)BSI Standards Publ

2、icationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 15416-1:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15416-1:2017. The UK participation in its preparation was entrusted to TechnicalCommittee PRI/52, Adhesives.A list of organizations

3、represented on this committee can be obtained 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

4、 0 580 85714 0 ICS 83.180 Compliance 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 31 January 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t

5、e dBS EN 15416-1:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15416-1 January 2017 ICS 83.180 English Version Adhesives for load bearing timber structures other than phenolic and aminoplastic - Test methods - Part 1: Long-term tension load test perpendicular to the bond line at varying c

6、limate conditions with specimens perpendicular to the glue line (Glass house test) Adhsifs pour structures portantes en bois de type autre que phnolique et aminoplaste - Mthodes d“essais - Partie 1 : Essai de charge soutenue long terme dans des conditions climatiques cycliques avec des prouvettes ch

7、arges perpendiculairement au joint de colle (essai de la serre) Klebstoffe fr tragende Holzbauteile ausgenommen Phenolharzklebstoffe und Aminoplaste - Prfverfahren - Teil 1: Langzeit-Zugprfung senkrecht zur Klebfuge bei verschiedenen Klimabedingungen mit Prfkrpern senkrecht zur Klebstofffuge (Glasha

8、us-Prfung) This European Standard was approved by CEN on 30 October 2016. 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 bibliogr

9、aphical 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 responsibi

10、lity 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

11、 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE N

12、ORMALISATION 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. EN 15416-1:2017 EBS EN 15416-1:2017EN 15416-1:2017 (E) 2 Contents Page E

13、uropean foreword . 3 Introduction 5 1 Scope 6 2 Normative references 6 3 Principle . 6 4 Apparatus . 6 4.1 House for weather exposure . 6 4.2 Test jig . 6 4.3 Testing machine 8 5 Method 9 5.1 General 9 5.2 Selection of timber 9 5.3 Production of the test sticks 9 5.4 Cutting of the test pieces and b

14、uild-up of the test batches 11 5.5 Test procedures 11 5.5.1 General . 11 5.5.2 Climate for duration of load tests . 12 5.5.3 Tensile test procedure . 12 6 Expression of results . 12 7 Requirements 12 8 Test report 13 Bibliography . 14 BS EN 15416-1:2017EN 15416-1:2017 (E) 3 European foreword This do

15、cument (EN 15416-1:2017) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secretariat of which is held by AENOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2017, and

16、conflicting national standards shall be withdrawn at the latest by July 2017. 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. This document is intend

17、ed to harmonize the provisions in EN 14080:2013, B.2, EN 15497:2014 and EN 16254:2013+A1:2016, Annex B and EN 16351. It differs with respect to the following: a) consistent specification of the test method for the determination of the long-term performance at varying climate conditions in one standa

18、rd; b) reference to EN 16254 for EPI adhesives added in the scope; c) Figure 1 and Figure 2 for connection device added; d) alternative cutting scheme of the components of the test sticks presented in Figure 4. This document is one of a series dealing with adhesives for use with timber structures, a

19、nd is published in support of product standards for bonded load-bearing timber structures. The series consists of three classification and performance requirements for adhesives for load-bearing timber structures, phenolic and aminoplastic adhesives (EN 301), one component polyurethane adhesives (EN

20、 15425) and emulsion polymerized isocyanate adhesives (EN 16254), together with 12 test methods (EN 302 Parts 1 to 8 and EN 15416 Parts 1 and 3 to 5). These European Standards have the following titles: EN 301, Adhesives, phenolic and aminoplastic, for load-bearing timber structures Classification a

21、nd performance requirements EN 15425, Adhesives One component polyurethane (PUR) for load-bearing timber structures - Classification and performance requirements EN 16254, Adhesives Emulsion polymerized isocyanate (EPI) for load-bearing timber structures Classification and performance requirements E

22、N 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 for load-bearing timber structur

23、es Test methods Part 3: Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength BS EN 15416-1:2017EN 15416-1:2017 (E) 4 EN 302-4, Adhesives for load-bearing timber structures Test methods Part 4: Determination of the effects of

24、 wood shrinkage on the shear strength EN 302-5, Adhesives for load-bearing timber structures Test methods Part 5: Determination of maximum assembly time under referenced conditions EN 302-6, Adhesives for load-bearing timber structures Test methods Part 6: Determination of the minimum pressing time

25、under referenced conditions EN 302-7, Adhesives for load-bearing timber structures Test methods Part 7: Determination of the working life under referenced conditions EN 302-8, Adhesives for load-bearing timber structures Test methods Part 8: Static load test of multiple bond line specimens in compre

26、ssion shear EN 15416-1, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 1: Long-term tension load test perpendicular to the bond line at varying climate conditions with specimens perpendicular to the glue line (Glass house test) EN 15416-3, Adhesiv

27、es for load bearing timber structures other than phenolic and aminoplastic Test methods Part 3: Creep deformation test at cyclic climate conditions with specimens loaded in bending shear EN 15416-4, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 4

28、: Determination of open assembly time under referenced conditions EN 15416-5, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 5: Determination of minimum pressing time under referenced conditions According to the CEN-CENELEC Internal Regulations, t

29、he national 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, Latv

30、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 15416-1:2017EN 15416-1:2017 (E) 5 Introduction Safety statement Persons using this European Standard should be familiar with

31、the normal laboratory practice, if applicable. This European Standard 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. Environ

32、mental statement It is understood that some of the material permitted in this European Standard may have negative environmental impact. As technological advantages lead to better alternatives for these materials, they will be eliminated from this European Standard to the extent possible. At the end

33、of the test, it is recommended that the user of this European Standard take care to carry out an appropriate disposal of the wastes, according to local regulation. BS EN 15416-1:2017EN 15416-1:2017 (E) 6 1 Scope This European Standard specifies a method of determining the ability of adhesive bonds t

34、o resist long-term sustained load applied vertical to the glue lines. It is applicable to adhesives used in load-bearing timber structures. It is suitable for the following applications: a) for assessing the compliance of adhesives according to EN 15425 and EN 16254; b) for assessing the suitability

35、 and quality of adhesives for load-bearing timber structures; c) for assessing the effect on the bond strength resulting from long-term sustained load at cyclic climate conditions. This method is intended primarily to obtain performance data for the classification of adhesives for load bearing timbe

36、r structures according to their suitability for use in defined climatic environments. This method is not intended to provide data 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

37、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 302-3:2013, Adhesives for load-bearing timbe

38、r 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 3 Principle Bonded test pieces are subjected to long-term sustained load applied vertical to the glue lines at cyclic climate conditions.

39、 The test climate is at natural outdoor conditions in Europe between latitude 45 and 60. The loaded samples are protected with light penetrable covering (“Glass house”). 4 Apparatus 4.1 House for weather exposure The weather exposure shall take place in a natural ventilated house covered with a ligh

40、t penetrating material where the air can circulate through openings along the floor and the roof. 4.2 Test jig The 10 samples, making a test set for each of the 3 duration of load times, shall be placed in a suitable test jig and loaded with a transverse tensile load according to 5.5.1. The test jig

41、s shall enable a smooth loading of the test pieces. The individual samples shall be free to rotate to secure that the load will be applied 90 to the glue lines. NOTE Test jigs with a hanging dead load for the load application in combination with a vertical loading of the individual specimens using a

42、 principle as visualized in Figure 1 and Figure 2, has shown to be a suitable method. BS EN 15416-1:2017EN 15416-1:2017 (E) 7 Dimensions in millimetres Key 1 screw M12x30 2 spherical washers, conical seats (DIN 6319) 3 connection device 70 mm 40 mm; length 50 mm Figure 1 Example of connection device

43、 between two specimens BS EN 15416-1:2017EN 15416-1:2017 (E) 8 Key 1 connection device 2 loaded test piece F load Figure 2 Specimen mounted in the connection device 4.3 Testing machine The test machine shall be identical with the equipment described in EN 302-3. BS EN 15416-1:2017EN 15416-1:2017 (E)

44、 9 5 Method 5.1 General The specimens shall be produced following EN 302-3, but with specimens made from untreated beech wood (Fagus sylvatica L.) with close contact and 0,5 mm thick glue line for application areas “Special purpose” and “General purpose”, and a close contact glue line for applicatio

45、n area “Finger joints”. 5.2 Selection of timber The beech wood boards from which the specimens are cut shall be free from knots, straight grained and shall have a density of (700 50) kg/m3at 12 % moisture content. The timber prior to specimen manufacture shall be conditioned in a climate chamber at

46、storage conditions of (20 2) C and (65 5) % relative humidity (hereafter climate 20/65). The moisture content shall be (12 1) %. Each beech wood board shall have a width of at least 150 mm, a length of at least 750 mm and a thickness of at least 35 mm, and shall be used to manufacture one test stick

47、 as shown in Figure 3, a) and b). The annual ring orientation of both components glued together shall be roughly co-linear and with an angle of the growth rings in the range of 30 and 60. 5.3 Production of the test sticks In total, 5 sticks with a cross section of 50 mm 60 mm (after bonding and fina

48、l preparation) and a length of at least 700 mm, enabling the cutting of 8 test specimens and 2 spare specimens from each stick of the specimen type described in EN 302-3, shall be manufactured for each glue line thickness. Alternatively, longer sticks can be pre-assembled into sub-sections of at lea

49、st 300 mm prior to bonding, providing sufficient matched samples for cutting the required number of specimens. Not more than 8 h before the bonding, the boards are planned to their final thickness. For test pieces with a 0,5 mm thick glue line, each stick is prepared in an appropriate manner to ensure that the correct glue line thickness is achieved and to ensure that there is no loss of adhesive during the bonding of the test sticks. The manufacture and build-up of the test sticks sha