DIN EN 13496-2013 en 9402 Thermal insulation products for building applications - Determination of the mechanical properties of glass fibre meshes as reinforcement for External The.pdf

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1、December 2013 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

2、S 91.100.60!%*vN“2078343www.din.deDDIN EN 13496Thermal insulation products for building applications Determination of the mechanical properties of glass fibre meshes asreinforcement for External Thermal Insulation Composite Systems withrenders (ETICS);English version EN 13496:2013,English translatio

3、n of DIN EN 13496:2013-12Wrmedmmstoffe fr das Bauwesen Bestimmung der mechanischen Eigenschaften von Glasfasergewebe als Armierung frauenseitige Wrmedmm-Verbundsysteme mit Putz (WDVS);Englische Fassung EN 13496:2013,Englische bersetzung von DIN EN 13496:2013-12Produits isolants thermiques pour le bt

4、iment Dtermination des caractristiques mcaniques des treillis de fibres de verre servant renforcer les systmes composites disolation thermique par lextrieur (ETICS) avec desenduits;Version anglaise EN 13496:2013,Traduction anglaise de DIN EN 13496:2013-12SupersedesDIN EN 13496:2003-02www.beuth.deDoc

5、ument comprises 11 pagesIn case of doubt, the German-language original shall be considered authoritative.11.13DIN EN 13496:2013-12 2 A comma is used as the decimal marker. National foreword This document (EN 13496:2013) has been prepared by Technical Committee CEN/TC 88 “Thermal insulating materials

6、 and products”, Working Group WG 18 “External thermal insulation composite systems” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Beschichtungsstoffe und Beschichtungen (Coatings and Coating Materials Standards Committee), Working Commit

7、tee NA 002-00-13 GA Gemeinschaftsarbeitsausschuss NAB/NABau: Wrmedmm-Verbundsysteme. Amendments This standard differs from DIN EN 13496:2003-02 as follows: a) the title of the standard has been modified; b) in Clause 6 “Test specimens”, the sampling process has been rendered more precise; c) a new F

8、igure 1 “Determination of the number of threads” has been added; d) in Clause 8 “Calculation and expression of results”, the test evaluation has been modified. Previous editions DIN EN 13496: 2003-02 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13496 October 2013 ICS 91.100.60 Supersedes EN

9、13496:2002English Version Thermal insulation products for building applications - Determination of the mechanical properties of glass fibre meshes as reinforcement for External Thermal Insulation Composite Systems with renders (ETICS) Produits isolants thermiques pour le btiment - Dtermination des c

10、aractristiques mcaniques des treillis de fibres de verre servant renforcer les systmes composites disolation thermique par lextrieur (ETICS) avec des enduits Wrmedmmstoffe fr das Bauwesen - Bestimmung der mechanischen Eigenschaften von Glasfasergewebe als Armierung fr auenseitige Wrmedmm-Verbundsyst

11、eme mit Putz (WDVS) This European Standard was approved by CEN on 31 August 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

12、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 re

13、sponsibility 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

14、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 COMIT EUROPEN DE N

15、ORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC 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 13496:2013: EEN 13496:2013 (E) 2 Contents Page Foreword . 3 1 Scope 4

16、 2 Normative references . 4 3 Terms and definitions 4 4 Principle 4 5 Apparatus . 4 6 Test specimens 5 6.1 Number of test specimens . 5 6.2 Dimensions of the test specimens 5 6.3 Preparation of the test specimens 5 6.3.1 Sampling . 5 6.3.2 Determination of the number of threads per 50 mm width of th

17、e specimen . 5 6.3.3 Determination of the number of threads per specimen to be tested . 6 6.4 Conditioning of the test specimens 7 6.4.1 Storage under normal conditions 7 6.4.2 Storage in aggressive medium 7 6.4.3 Wash and drying procedure 7 7 Procedure . 7 7.1 Test conditions . 7 7.2 Attachment of

18、the test specimens in the tensile testing machine . 7 7.3 Test procedure . 8 8 Calculation and expression of results 8 9 Accuracy of measurement . 8 10 Test report 9 DIN EN 13496:2013-12 EN 13496:2013 (E) 3 Foreword This document (EN 13496:2013) has been prepared by Technical Committee CEN/TC 88 “Th

19、ermal insulating materials and products”, the secretariat of which is held by DIN. 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 April 2014, and conflicting national standards shall be withdrawn

20、 at the latest by April 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13496:2002. The main changes

21、 with respect to the previous edition are listed below: addition of sampling in Clause 6; addition of Figure 1; amendment of the test evaluation in Clause 8. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this

22、 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia

23、, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 13496:2013-12 EN 13496:2013 (E) 4 1 Scope This European Standard specifies equipment and procedures for determining the tensile strength and elongation of glass fibre meshes which are used for the reinforcement of the base

24、 coat in External Thermal Insulation Composite Systems (ETICS). 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, th

25、e latest edition of the referenced document (including any amendments) applies. EN 1607, Thermal insulating products for building applications Determination of tensile strength perpendicular to faces EN ISO 9229:2007, Thermal insulation Vocabulary (ISO 9229:2007) ISO 1887, Textile glass Determinatio

26、n of combustible-matter content 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 9229:2007 and the following apply. 3.1 tensile strength of glass fibre mesh strength of the test specimen at failure relative to the width of the test specimen 4 Princ

27、iple The tensile strength of glass fibre meshes is determined at failure using a tensile testing machine. 5 Apparatus 5.1 Tensile testing machine, appropriate for the range of force and displacement involved, capable of having a constant crosshead speed adjusted to (50 5) mm/min. It shall be capable

28、 of measuring the force with an accuracy of 1 % in accordance with EN 1607. 5.2 Clamps of the tensile testing machine, which shall be coated with a material to ensure attachment without slippage of the test specimen, for example, rubber and shall fasten the test specimen across its whole width. The

29、clamps shall be sufficiently rigid to resist deformation during the test. 5.3 Container, which shall be wide and deep enough so that the test specimens can be immersed completely in an alkaline test solution. This can be a cylindrical container, of volume (2,5 0,5) l of height (48 1) cm, of internal

30、 diameter (8 0,5) cm, in which (2 0,1) l of the alkaline test solution is introduced. The material of the container shall be resistant to the alkaline test solution (e.g. plastics or stainless steel). DIN EN 13496:2013-12 EN 13496:2013 (E) 5 6 Test specimens 6.1 Number of test specimens Seven test s

31、pecimens shall be used in warp direction, stored under normal conditions. Seven test specimens shall be used in warp direction, stored in aggressive medium. Seven test specimens shall be used in weft direction, stored under normal conditions. Seven test specimens shall be used in weft direction, sto

32、red in aggressive medium. 6.2 Dimensions of the test specimens The tensile strength of the meshes are tested in both the warp and the weft directions. The test specimen shall contain a minimum number of five threads within the width. The ratio of the length between the clamps to the width of the tes

33、t specimen shall be 4 : 1 at minimum. The dimensions of the test specimens shall be a minimum of 300 mm 45 mm. 6.3 Preparation of the test specimens 6.3.1 Sampling The test specimens shall be cut from the original packed product after removal of the first 5 m of the roll and at a distance of at leas

34、t 100 mm from the edges. The test specimen shall be cut between the single warp or weft threads. The number of threads in the warp or in the weft direction shall be the same for the seven test specimens. The number of the threads shall be indicated in the test report. Test specimens shall not be ben

35、t or folded and shall be handled carefully during the whole test procedure. 6.3.2 Determination of the number of threads per 50 mm width of the specimen The determination of the number of threads is specified each from middle of the mesh to middle of the mesh for the following measured distances. We

36、ft direction: total width of the roll, however about 1 m at maximum Warp direction: about 1 m DIN EN 13496:2013-12 EN 13496:2013 (E) 6 Key l measuring distance from middle of the mesh to middle of the mesh Figure 1 Determination of the number of threads Within this measuring distance, l, as shown in

37、 Figure 1, the threads are counted, and the calculated number of threads n50per 50 mm width of the specimen is calculated in accordance with Formula (1): 5050=lnn (1) where n50is the calculated number of threads per 50 mm width of the specimen, to the nearest 0,1; n is the number of threads within t

38、he measuring distance l, to the nearest 1; l is the measuring distance in millimetres, to the nearest 1 mm. 6.3.3 Determination of the number of threads per specimen to be tested For the specification of the number of threads per specimen to be tested, ntested, the value of n50is determined as a who

39、le number as follows: first place after the decimal point 5: round down; first place after the decimal point 5: round up. Cutting out of the number of threads to be tested, ntested, always takes place in the middle of the mesh. NOTE Because of the fact that cutting out takes place in the middle of t

40、he mesh, the total width of the mesh strips can differ by 5 mm from the nominal measure 50 mm. DIN EN 13496:2013-12 EN 13496:2013 (E) 7 6.4 Conditioning of the test specimens 6.4.1 Storage under normal conditions The test specimens shall be stored at (23 2) C and (50 5) % relative humidity for at le

41、ast 24 h. 6.4.2 Storage in aggressive medium The test specimens shall be stored in the following alkaline test solution for 24 h at (60 2) C. Add given amounts of substances to one litre of demineralised water: Ca(OH)20,5 g at minimum purity of 96 % by mass; NaOH 1 g at minimum purity of 97 % by mas

42、s; KOH 4 g at minimum purity of 85 % by mass. For the preparation of the alkaline test solution, the reagents shall be dissolved in distilled water in the given order above. For the storage of 30 g to 35 g glass fibre mesh, 1 l of the alkaline test solution is necessary. If the glass mesh to be test

43、ed is only used in a base coat according to EN 15824, then it is also possible to use an aggressive medium consisting of a 20 % suspension of base coat in water at (60 2) C. 6.4.3 Wash and drying procedure After storage in the aggressive medium, the test specimens shall be gently rinsed in running t

44、ap water at (20 5) C until the pH value at the surface of the specimens is less than 9, as measured with pH indicator paper. The test specimens shall be stored for 60 min in 0,5 % (by mass) hydrochloric acid. After this storage, the test specimens shall be gently rinsed in running tap water at (20 5

45、) C, without significant mechanical movement until a pH value of 6 to 8 is stabilised, measured carefully with pH indicator paper. The test specimens shall be dried for 60 min at (60 2) C and afterwards stored for at least 24 h at (23 2) C and (50 5) % relative humidity before testing. 7 Procedure 7

46、.1 Test conditions The test shall be carried out at (23 2) C. 7.2 Attachment of the test specimens in the tensile testing machine The test specimens shall be attached between the two clamps, which are fastened in the tensile testing machine. A self-aligning attachment on the top clamp avoids uneven

47、distribution of tensile stress during the test. The test specimen shall be located perpendicular to the clamps of the tensile testing machine. The distance between the clamps shall be a minimum of 200 mm. DIN EN 13496:2013-12 EN 13496:2013 (E) 8 7.3 Test procedure The test shall be carried out in th

48、e warp and the weft directions before and after storage of the test specimens in the aggressive medium. Preload the test specimens at 5 mm/min until the load of 10 N is reached. Measure the resulting length, l0, of the test specimen. Increase the load with a constant crosshead speed of (50 5) mm/min

49、 until failure occurs. Record the force, F, in Newton and the corresponding length, l, in millimetres. Discard the result of the test of any test specimen where the specimen is displaced within the clamp, or where the failure occurred at the clamp (majority of the threads break directly at the clamps). 8 Calculation and expression of results The tensile strength per 50 mm width of the specimen is calculated in accordance with Formula (2) in each type of conditioning and directio