DIN EN ISO 10319-2015 Geosynthetics - Wide-width tensile test (ISO 10319 2015) German version EN ISO 10319 2015《土工布 宽条拉伸试验(ISO 10319-2015) 德文版本EN ISO 10319-2015》.pdf

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1、September 2015Translation by DIN-Sprachendienst.English price group 12No 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).I

2、CS 59.080.70!%F0.“2351311www.din.deDDIN EN ISO 10319Geosynthetics Widewidth tensile test (ISO 10319:2015);English version EN ISO 10319:2015,English translation of DIN EN ISO 10319:201509Geokunststoffe Zugversuch am breiten Streifen (ISO 10319:2015);Englische Fassung EN ISO 10319:2015,Englische berse

3、tzung von DIN EN ISO 10319:2015-09Gosynthtiques Essai de traction des bandes larges (ISO 10319:2015);Version anglaise EN ISO 10319:2015,Traduction anglaise de DIN EN ISO 10319:2015-09SupersedesDIN EN ISO 10319:2008-10www.beuth.deIn case of doubt, the German-language original shall be considered auth

4、oritative.Document comprises 21 pages08.15 DIN EN ISO 10319:2015-09 2 A comma is used as the decimal marker. National foreword This document (EN ISO 10319:2015) has been prepared by Technical Committee ISO/TC 221 “Geosynthetics” (Secretariat: BSI, United Kingdom) in collaboration with Technical Comm

5、ittee CEN/TC 189 “Geosynthetics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the DIN-Normenausschuss Textil und Textil-maschinen (DIN Standards Committee Textiles and Textile Machinery), Working Committee NA 106-01-11 AA Geotextilien und Geokunststoffe. T

6、he DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 554 DIN 50014 ISO 3696 DIN ISO 3696 ISO 7500-1 DIN EN ISO 7500-1 ISO 9862 DIN EN ISO 9862 ISO 10318 DIN EN ISO 10318 ISO 10321 DIN EN ISO 10321 Amendments This standard differs from DIN EN

7、ISO 10319:2008-10 as follows: a) the scope has been extended and rendered more precise; b) test specimens now include geogrids with one, two and with three axes; c) figures showing geogrids with one, two and three axes have been added; d) specifications relating to tensile strength have been include

8、d; e) testing of double twisted steel wire mesh products has been added. Previous editions DIN EN ISO 10319: 1996-06, 2008-10 DIN EN ISO 10319:2015-09 3 National Annex NA (informative) Bibliography DIN 50014, Climates and their technical application Standard atmospheres DIN EN ISO 7500-1, Metallic m

9、aterials Verification of static uniaxial testing machines Part 1: Tension/ compression testing machines Verification and calibration of the force-measuring system DIN EN ISO 9862, Geosynthetics Sampling and preparation of test specimens DIN EN ISO 10318, Geosynthetics Terms and definitions DIN EN IS

10、O 10321, Geosynthetics Tensile test for joints/seams by wide-width strip method DIN ISO 3696, Water for analytical laboratory use Specification and test methods DIN EN ISO 10319:2015-09 4 This page is intentionally blank EN ISO 10319May 2015 ICS 59.080.70 Supersedes EN ISO 10319:2008English Version

11、Geosynthetics - Wide-width tensile test (ISO 10319:2015) Gosynthtiques - Essai de traction des bandes larges(ISO 10319:2015)Geokunststoffe - Zugversuch am breiten Streifen(ISO 10319:2015)This European Standard was approved by CEN on 16 April 2015. CEN members are bound to comply with the CEN/CENELEC

12、 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 t

13、o 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 offici

14、al 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, N

15、orway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO

16、10319:2015 EEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG2Contents Page Foreword . 3 1 Scope . 4 2 Normative references. 4 3 Terms and definitions 4 4 Principle 7 5 Apparatus and reagents 8 6 Test spe

17、cimens 8 6.1 Number of test specimens 8 6.2 Preparation of test specimens 9 6.3 Dimensions . 9 6.3.1 Nonwoven geotextiles, knitted geotextiles, geonets, geomats, clay geosynthetic barriers, drainage composites, and other products . 9 6.3.2 Woven geotextiles 9 6.3.3 Geogrids with one axis 9 6.3.4 Geo

18、grids with two axes and four axes. 9 6.3.5 Geogrids with three axes 10 6.3.6 Metallic geotextile related product . 10 6.3.7 Testing wet specimen 13 7 Conditioning atmosphere 14 7.1 General 14 7.2 Conditioning for testing in wet condition 14 8 Test procedure . 14 8.1 Setting up the tensile testing ma

19、chine 14 8.2 Insertion of the test specimen in the jaws . 14 8.3 Installation of the extensometer . 15 8.4 Measurement of tensile properties . 15 8.5 Measurement of strain . 15 9 Calculations 16 9.1 Tensile strength 16 9.2 Tensile strain at tensile strength 16 9.3 Tensile strain at nominal tensile s

20、trength . 16 9.4 Secant stiffness 17 10 Test report . 17 DIN EN ISO 10319:2015-09 EN ISO 10319:2015 (E) Foreword This document (EN ISO 10319:2015) has been prepared by Technical Committee ISO/TC 221 in collaboration with Technical Committee CEN/TC 189 “Geosynthetics” the secretariat of which is held

21、 by NBN. 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 November 2015, and conflicting national standards shall be withdrawn at the latest by November 2015. Attention is drawn to the possibility

22、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 ISO 10319:2008. This document has been prepared under a mandate given to CENELEC by the European

23、 Commission and the European Free Trade Association. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finlan

24、d, 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 the United Kingdom. Endorsement notice The text of ISO

25、 10319:2015 has been approved by CEN as EN ISO 10319:2015 without any modification. “Geosynthetics”3DIN EN ISO 10319:2015-09EN ISO 10319:2015 (E)1 ScopeThis International Standard describes an index test method for the determination of the tensile properties of geosynthetics (polymeric, glass, and m

26、etallic), using a wide-width strip. This International Standard is applicable to most geosynthetics, including woven geotextiles, nonwoven geotextiles, geocomposites, knitted geotextiles, geonets, geomats, and metallic products. It is also applicable to geogrids and similar open-structure geotextile

27、s, but specimen dimensions might need to be altered. It is not applicable to polymeric or bituminous geosynthetic barriers, while it is applicable to clay geosynthetic barriers.This International Standard specifies a tensile test method that covers the measurement of load elongation characteristics

28、and includes procedures for the calculation of secant stiffness, maximum load per unit width and strain at maximum load. Singular points on the load-extension curve are also indicated.Procedures for measuring the tensile properties of both conditioned and wet specimens are included in this Internati

29、onal Standard.2 Normative referencesThe 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 (includ

30、ing any amendments) applies.ISO 554, Standard atmospheres for conditioning and/or testing SpecificationsISO 3696, Water for analytical laboratory use Specification and test methodsISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/ compression testing mac

31、hines Verification and calibration of the force-measuring systemISO 9862, Geosynthetics Sampling and preparation of test specimensISO 10318, Geosynthetics Terms and definitionsISO 10321, Geosynthetics Tensile test for joints/seams by wide-width strip methodEN 10223-3, Steel wire and wire products fo

32、r fencing and netting Part 3: Hexagonal steel wire mesh products for engineering purposes3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 10318 and the following apply.3.1nominal gauge lengthinitial distance, normally 60 mm (30 mm on either side of the

33、 specimen symmetrical centre), between two reference points located on the specimen parallel to the applied load direction3.2elongation at preloadmeasured increase in gauge length (mm) corresponding to an applied load of 1 % of the maximum loadNote 1 to entry: The elongation at preload is indicated

34、as SA in Figure 1.4DIN EN ISO 10319:2015-09 EN ISO 10319:2015 (E) 3.3true gauge lengthL0nominal gauge length (3.1) in millimetres plus the elongation at preload (3.2) in millimetres3.4maximum tensile ForceFmaxmaximum tensile force obtained during a testNote 1 to entry: The maximum load is expressed

35、in kilonewtons (kN).3.5tensile strainincrease in true gauge length (3.3) of a specimen during a test divided by true gauge lengthNote 1 to entry: Tensile strain is expressed as a percentage of the true gauge length.3.6tensile strain at maximum tensile loadmaxtensile strain (3.5) exhibited by the spe

36、cimen under maximum tensile loadNote 1 to entry: Tensile strain at maximum tensile load is expressed in percent.3.7tensile strain at nominal strengthnomstrain at the guaranteed strength as defined by the manufacturer3.8tensile secant stiffnessJratio of tensile force per unit width to an associated v

37、alue of strainNote 1 to entry: Tensile secant stiffness is expressed in kilonewtons per metre (kN/m).3.9tensile strengthTmaxmaximum force per unit width observed during a test in which the specimen is stretched to ruptureNote 1 to entry: Tensile strength is expressed in kilonewtons per metre (kN/m).

38、3.10strain ratestrain at maximum load, divided by the duration of the test, i.e. the time to attainment of maximum tensile load from preloadNote 1 to entry: Strain rate is expressed in percentage per minute.5DIN EN ISO 10319:2015-09EN ISO 10319:2015 (E)KeyT load/unit width, in kN/m strain, in %AC st

39、rain for secant stiffnessAZ secantSA elongation at preloadFigure 1 Typical load per unit width/strain curve6DIN EN ISO 10319:2015-09 EN ISO 10319:2015 (E) KeyTmaxtensile strength (kN/m)maxtensile strain (%)Tmaxtensile strength (kN/m) at second peakmaxtensile strain (%) at second peakFigure 2 Typical

40、 tensile load per unit width strain curves of two geocomposites second peak-values marked by “”, e.g. Tmax, max4 PrincipleA specimen is held across its entire width in a set of clamps or jaws (see Figure 3) of a tensile testing machine operated at a constant displacement speed, and a longitudinal fo

41、rce is applied to the test specimen until the specimen ruptures. The tensile properties of the test specimen are calculated from machine scales, dials, autographic recording charts, or an interfaced computer. A constant test speed is selected so as to give a strain rate of (20 5) % per minute in the

42、 gauge length of the specimen, except for products that exhibit a low strain, i.e. less than or equal to 5 %. For these products, e.g. glass, the speed is reduced so that the specimen breaks in 30 5 s.The basic distinction between the current method and other methods for measuring tensile properties

43、 of fabrics is the width of the specimen. In the current method, the width is greater than the length of the specimen, as some geosynthetics have a tendency to contract (neck down) under load in the gauge length area.The greater width reduces the contraction effect of such fabrics and provides a rel

44、ationship closer to the expected fabric behaviour in the field, as well as a standard for comparison of geosynthetics.When information on strain is required, extension measurements are made by means of an extensometer, which follows the movement of two reference points on the specimen. These referen

45、ce points are situated on the specimen symmetry axis, which is parallel to the applied load, and are separated by a distance of 60 mm (30 mm on each side of the specimen symmetry centre). This distance can be adapted for some types of geogrid in order to include at least one row of nodes or internal

46、 junctions.7DIN EN ISO 10319:2015-09EN ISO 10319:2015 (E)5 Apparatus and reagents5.1 Tensile testing machine (constant rate of extension), complying with ISO 7500-1, Class 2 or better, in which the rate of increase of specimen length is uniform with time, fitted with a set of clamps or jaws which ar

47、e sufficiently wide to hold the entire width of the specimen and equipped with appropriate means to limit slippage or damage. One clamp may be supported by a free swivel or universal joint to compensate for uneven distribution of force across the specimen.Compressive jaws should be used for most mat

48、erials, but for materials where the use of these grips gives rise to excessive jaw breaks or slippage, capstan grips may be used.It is essential to choose jaw faces that limit slippage of the specimen, especially in stronger geosynthetics. Examples of jaw faces that have been found satisfactory are shown in Figure 3.5.2 Extensometer, capable of measuring the distance between two reference points on the specimen without any damage to the specimen or slippage, care being taken to ensure that the m