DIN EN ISO 25619-2-2015 Geosynthetics - Determination of compression behaviour - Part 2 Determination of short-term compression behaviour (ISO 25619-2 2015) German version EN ISO 2.pdf

1、December 2015 English price group 9No 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).ICS 59.080.70!%JwS“2398448www.din.de

2、DIN EN ISO 25619-2Geosynthetics Determination of compression behaviour Part 2: Determination of short-term compression behaviour (ISO 25619-2:2015);English version EN ISO 25619-2:2015,English translation of DIN EN ISO 25619-2:2015-12Geokunststoffe Bestimmung des Druckverhaltens Teil 2: Bestimmung de

3、s Kurzzeit-Druckverhaltens (ISO 25619-2:2015);Englische Fassung EN ISO 25619-2:2015,Englische bersetzung von DIN EN ISO 25619-2:2015-12Gosynthtiques Dtermination du comportement en compression Partie 2: Dtermination du comportement la compression court terme (ISO 25619-2:2015);Version anglaise EN IS

4、O 25619-2:2015,Traduction anglaise de DIN EN ISO 25619-2:2015-12SupersedesDIN EN ISO 25619-2:2009-06www.beuth.deDocument comprises 13 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.01.16 DIN EN ISO 25619-2:2015-12 2 A comma is

5、 used as the decimal marker. National foreword This document (EN ISO 25619-2:2015) has been prepared by Technical Committee ISO/TC 221 “Geosynthetics” in collaboration with Technical Committee CEN/TC 189 “Geosynthetics” (Secretariat: NBN, Belgium). The responsible German body involved in its prepara

6、tion was DIN-Normenausschuss Textil und Textilmaschinen (DIN Standards Committee Textiles and Textile Machinery), Working Committee NA 106-01-11 AA Geotextilien und Geokunststoffe. The DIN Standards corresponding to the International Standards referred to in Clause 2 of this standard are as follows:

7、 ISO 554 DIN 50014 ISO 7500-1 DIN EN ISO 7500-1 Amendments This standard differs from DIN EN ISO 25619-2:2009-06 as follows: a) terms and definitions have been revised; b) symbols and abbreviated terms have been included; c) the figures have been renumbered and Figure 3 (previously Figure 2) has bee

8、n brought in line with the modifications; d) Clause 9 on the calculation and expression of results has been revised. Previous editions DIN V ENV 1897: 1996-03 DIN EN 1897: 2002-02 DIN EN ISO 25619-2: 2009-06 National Annex NA (informative) Bibliography DIN 50014, Climates and their technical applica

9、tion Standard atmospheres DIN EN ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 25619-2 September 2015 ICS

10、 59.080.70 Supersedes EN ISO 25619-2:2008English Version Geosynthetics - Determination of compression behaviour -Part 2: Determination of short-term compression behaviour (ISO 25619-2:2015) Gosynthtiques - Dtermination du comportement en compression - Partie 2: Dtermination du comportement la compre

11、ssion court terme Geokunststoffe - Bestimmung des Druckverhaltens - Teil 2: Bestimmung des Kurzzeit-Druckverhaltens This European Standard was approved by CEN on 8 August 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Eu

12、ropean 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 versi

13、ons (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,

14、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, Sw

15、itzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG 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 natio

16、nal Members. Ref. No. EN ISO 25619-2:2015 E(ISO 25619-2:2015) (ISO 25619-2:2015) Foreword .1 Scope .2 Normative references 3 Terms and definitions .4 Symbols and abbreviated terms .5 Principle 6 Apparatus .6.1 Compression testing machine 6.2 Measurement of displacement 6.3 Measurement of force .6.4

17、Recording of measured values.7 Specimens 7.1 Dimensions of specimens 7.2 Preparation of specimens 7.3 Number of specimens .7.4 Conditioning of specimens .8 Test procedure 9 Calculation and expression of results .9.1 General .9.2 Short-term compressive strength and corresponding strain 9.2.1 Short-te

18、rm compressive strength 9.2.2 Compressive strain9.3 Compressive strain at 1 MPa 10 Test report Contents PageEuropean foreword . 3 2EN ISO 25619-2:2015 (E) 45556781011101010998887766666DIN EN ISO 25619-2:2015-12 European foreword This document (EN ISO 25619-2:2015) has been prepared by Technical Comm

19、ittee ISO/TC 221 “Geosynthetics” in collaboration with Technical Committee CEN/TC 189 “Geosynthetics” the secretariat of which is held 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 March

20、 2016, and conflicting national standards shall be withdrawn at the latest by March 2016. 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 righ

21、ts. This document supersedes EN ISO 25619-2:2008. 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, Finland,

22、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

23、619-2:2015 has been approved by CEN as EN ISO 25619-2:2015 without any modification. 3EN ISO 25619-2:2015 (E) DIN EN ISO 25619-2:2015-12 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing

24、International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaiso

25、n with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Direct

26、ives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some

27、 of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarat

28、ions received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about

29、 ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 221 Geosynthetics.This second edition cancels and replaces the first edition (ISO 25619-2:2008), which has b

30、een technically revised.ISO 25619 consists of the following parts, under the general title Geosynthetics Determination of compression behaviour: Part 1: Compressive creep properties Part 2: Determination of short-term compression behaviour4EN ISO 25619-2:2015 (E) DIN EN ISO 25619-2:2015-12 1 ScopeTh

31、is part of ISO 25619 specifies an index test method for determining the short-term compressive behaviour of geosynthetics. It can be used to determine the deformation behaviour under short-term compressive stress, e.g. after exposure to stress, liquids, or light.This part of ISO 25619 can be used fo

32、r quality control purposes. It is not intended to be used for design purposes.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 r

33、eferences, the latest edition of the referenced document (including any amendments) applies.ISO 554, Standard atmospheres for conditioning and/or testing SpecificationsISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verific

34、ation and calibration of the force-measuring systemISO 10318-1, Geosynthetics Part 1: Terms and definitions3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 10318 and the following apply.3.1initial thicknessdithickness measured in the direction of loadi

35、ng at a stress of 5 kPa3.2compressive strainmrratio of the decrease in thickness of the test specimen to its initial thickness, di(3.1) at failure/rupture, and expressed as a percentage3.3short-term compressive strengthmrratio of the maximum compressive force, Fmr, reached when the pressure at colla

36、pse is less than 1 MPa, to the initial cross-sectional area of the test specimenNote 1 to entry: See Figure 2.5EN ISO 25619-2:2015 (E) DIN EN ISO 25619-2:2015-12 4 Symbols and abbreviated termsA0initial cross-sectional area of the specimend thickness of the specimenF forceFmrmaximum compressive forc

37、e at failure/ruptureFNapplied normal forceX displacementXdisplacement corresponding to a stress of 1 MPaXmaxdisplacement corresponding to the maximum force reachedmrcompressive straincompressive strain at a given stress, 1,0compressive strain at a given stress of 1 MPamrshort-term compressive streng

38、th5 PrincipleA compressive force is applied in a testing machine according to ISO 7500-1, at a given rate of displacement, perpendicular to the major faces of a square or rectangular cut test specimen and the maximum stress supported by the specimen is recorded.When the value of the maximum stress i

39、s lower than 1 MPa, it is designated as short-term compressive strength, mr, and the corresponding strain is reported. If no failure is observed before 1 MPa has been reached, the compressive strain at 1 MPa is calculated and its value reported.6 Apparatus6.1 Compression testing machineCompression t

40、esting machine in accordance with ISO 7500-1, Class 2 or higher, designed to suit the range of force and displacement involved and having two rigid, plane, parallel loading platens with smooth surfaces, and a minimum side length equal to the side length of the test specimen. One of the platens shall

41、 be fixed. The movable platen shall be capable of moving at a constant rate of displacement, in accordance with Clause 8.6.2 Measurement of displacementDisplacement measuring device, fitted to the compression testing machine, which allows continuous measurement of the displacement of the movable pla

42、ten to an accuracy of 5 % or 0,1 mm, whichever is smaller.6.3 Measurement of forceSensor fitted to one of the machine platens to measure the force produced by the reaction of the specimen upon the platens. This sensor shall be such that its own deformation during the measuring operation is negligibl

43、e compared with that being measured or, if not, it shall be taken into account by calculation. In addition, it shall allow continuous measurement of the force to an accuracy of 1 %.6EN ISO 25619-2:2015 (E) DIN EN ISO 25619-2:2015-12 6.4 Recording of measured valuesDevice for the simultaneous recordi

44、ng of the force, F, and the displacement, X, which provides a curve of F as a function of X or as stress versus strain (see Figure 3).7 Specimens7.1 Dimensions of specimensThe specimens shall fulfil the following criteria:a) the specimens shall be of rectangular or square shape and have a minimum si

45、ze of 100 mm by 100 mm;b) if the product is structured in such a way that compressive loads are supported only at discrete points or areas, a minimum of three complete points or areas in each direction shall be covered by the loading plate; see Figures 1 and 2.Specimens shall not be layered to produ

46、ce a greater thickness for testing.Key1 metal top plate, smooth surface (same size as specimen or bigger)2 metal base plate, smooth surface (bigger than top plate)d thickness of the specimenFNapplied normal forceFigure 1 Loading arrangement for e.g. single sided structured cores7EN ISO 25619-2:2015

47、(E) DIN EN ISO 25619-2:2015-12 Key1 metal top plate, smooth surface (same size as specimen or bigger)2 metal base plate, smooth surface (bigger than top plate)d thickness of the specimenFNapplied normal forceFigure 2 Loading arrangement for e.g. double sided structured cores7.2 Preparation of specim

48、ensSpecimens shall be cut so that their base is normal to the direction of compression of the product in its intended use. The specimen shall be cut by methods that do not change the structure with regard to that of the original product.7.3 Number of specimensAt least five specimens shall be used. U

49、se a new specimen for each test.7.4 Conditioning of specimensThe test specimens shall be conditioned and tested in the standard atmosphere for testing (20 C 2 C at 65 % 5 % relative humidity), as specified in ISO 554.The specimens can be considered to have been conditioned when the change in mass in successive weighings made at intervals of not less than 2 h does not exceed 0,25 % of the mass of the test specimen.Conditioning and/or te