EN ISO 13426-2:2005
(Main)Geotextiles and geotextile-related products - Strength of internal structural junctions - Part 2: Geocomposites (ISO 13426-2:2005)
Geotextiles and geotextile-related products - Strength of internal structural junctions - Part 2: Geocomposites (ISO 13426-2:2005)
ISO 13426-2:2005 describes index tests for determining the strength of the internal structural junctions of all geocomposites and of clay geosynthetic barriers.
Geotextilien und geotextilverwandte Produkte - Festigkeit produktinterner Verbindungen - Teil 2: Geoverbundstoffe (ISO 13426-2:2005)
Géotextiles et produits apparentés - Résistance des liaisons de structures internes - Partie 2: Géocomposites (ISO 13426-2:2005)
L'ISO 13426-2:2005 décrit des essais de caractérisation de la résistance des liaisons de structures internes de tous les géocomposites et des géosynthétiques bentonitiques.
Geotekstilije in geotekstilijam sorodni proizvodi - Moč notranjih gradbenih spojev - 2. del: Geokompoziti (ISO 13426-2:2005)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2005
*HRWHNVWLOLMHLQJHRWHNVWLOLMDPVRURGQLSURL]YRGL0RþQRWUDQMLKJUDGEHQLKVSRMHY
GHO *HRNRPSR]LWL ,62
Geotextiles and geotextile-related products - Strength of internal structural junctions -
Part 2: Geocomposites (ISO 13426-2:2005)
Geotextilien und geotextilverwandte Produkte - Festigkeit produktinterner Verbindungen -
Teil 2: Geoverbundstoffe (ISO 13426-2:2005)
Géotextiles et produits apparentés - Résistance des liaisons de structures internes -
Partie 2: Géocomposites (ISO 13426-2:2005)
Ta slovenski standard je istoveten z: EN ISO 13426-2:2005
ICS:
59.080.70 Geotekstilije Geotextiles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 13426-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2005
ICS 59.080.70
English version
Geotextiles and geotextile-related products - Strength of internal
structural junctions - Part 2: Geocomposites (ISO 13426-2:2005)
Géotextiles et produits apparentés - Résistance des Geotextilien und geotextilverwandte Produkte - Festigkeit
liaisons de structures internes - Partie 2: Géocomposites produktinterner Verbindungen - Teil 2: Geoverbundstoffe
(ISO 13426-2:2005) (ISO 13426-2:2005)
This European Standard was approved by CEN on 7 April 2005.
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 bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat 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 responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13426-2:2005: E
worldwide for CEN national Members.
Foreword
This document (EN ISO 13426-2:2005) has been prepared by Technical Committee CEN/TC 189
"Geosynthetics", the secretariat of which is held by IBN, in collaboration with Technical Committee ISO/TC
221 "Geosynthetics".
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 October 2005, and conflicting national standards shall be withdrawn
at the latest by October 2005.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
INTERNATIONAL ISO
STANDARD 13426-2
First edition
2005-04-15
Geotextiles and geotextile-related
products — Strength of internal
structural junctions —
Part 2:
Geocomposites
Géotextiles et produits apparentés — Résistance des liaisons de
structures internes —
Partie 2: Géocomposites
Reference number
ISO 13426-2:2005(E)
©
ISO 2005
ISO 13426-2:2005(E)
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ii © ISO 2005 – All rights reserved
ISO 13426-2:2005(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Principle . 2
5 Conditioning atmosphere. 3
6 Number of specimens to be tested . 3
7 Test specimens . 3
8 Apparatus. 5
9 Test procedure . 5
10 Calculations. 6
11 Test report. 7
Bibliography . 10
ISO 13426-2:2005(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing 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 liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some 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.
ISO 13426-2 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 189, Geosynthetics, in collaboration with Technical Committee ISO/TC 221, Geosynthetics, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
ISO 13426 consists of the following parts, under the general title Geotextiles and geotextile-related
products — Strength of internal structural junctions:
— Part 1: Geocells
— Part 2: Geocomposites
— Part 3: Geogrids
iv © ISO 2005 – All rights reserved
INTERNATIONAL STANDARD ISO 13426-2:2005(E)
Geotextiles and geotextile-related products — Strength
of internal structural junctions —
Part 2:
Geocomposites
1 Scope
This part of ISO 13426 describes index tests for determining the strength of the internal structural junctions of
all geocomposites and of clay geosynthetic barriers.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 554, Standard atmospheres for conditioning and/or testing — Specifications
ISO 9862, Geosynthetics — Sampling and preparation of test specimens
ISO 10318, Geosynthetics — Terms and definitions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10318 and the following apply.
3.1
failure
point at which a geosynthetic ceases to be functionally capable of its intended use
NOTE A material may be considered to have failed without rupture.
3.2
geocomposite
manufactured, assembled material using at least one geosynthetic product among the components, used in
contact with soil and/or other materials in geotechnical and civil engineering applications
3.3
junction
point or line where two of the geosynthetics components are connected
3.4
junction strength
peak load attained during the test, reported to the unit width of the product
NOTE The junction strength is expressed in kilonewtons per metre (kN/m).
ISO 13426-2:2005(E)
3.5
peel test
tensile test where two components of a geocomposite are separately clamped and one component is peeled
away from the other
3.6
rupture
breaking or tearing apart of a geosynthetic
3.7
shear test
tensile test where two components of a geocomposite are separately clamped and the failure occurs along the
plane of the product
4 Principle
Specimens are tested to measure the resistance of the junctions to different states of stress.
The tests performed for geocomposites are as follows:
Shear test (Test A — Figure 1): After cutting a test specimen of wide width, one of the two geosynthetics
making the junction is delaminated from the other for a certain length at each opposed edge, enough to
ensure a good clamping. The delaminated portion is mounted in a clamp of a tensile testing machine,
while the other geosynthetic at the opposite edge of the specimen is mounted in the other clamp. The
specimen is tested at a constant rate of strain, until shear failure of the junction or tensile failure of one of
the geosynthetics occurs. The corresponding tensile shear resistance is measured and recorded.
Peel test (Test B — Figure 2): After cutting a a test specimen of wide width, one of the two geosynthetics
making the junction is delaminated from the other for a certain length at one edge, enough to ensure a
good clamping. The delaminated portions of the two geosynthetics are each mounted in one clamp of a
tensile testing machine. The specimen is tested until failure occurs. The corresponding peeling resistance
is measured and recorded.
Dimensions in millimetres
Key
1 clamp
2 first geosynthetic component
3 second geosynthetic component
Figure 1 — Shear test
2 © ISO 2005 – All rights reserved
ISO 13426-2:2005(E)
Dimensions in millimetres
Key
1 clamp
2 first geosynthetic component
3 second geosynthetic component
Figure 2 — Peel test
5 Conditioning atmosphere
The test specimens shall be conditioned in the standard atmosphere for testing at (20 ± 2) °C and (65 ± 5) %
relative humidity, as defined in ISO 554.
The specimens can be considered to be 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 testing in a standard atmosphere may only be omitted when it can be shown that results
obtained for the same specific type of product (both structure and polymer type) are not affected by changes
in temperature and humidity exceeding these limits. This information shall be included in the test report.
6 Number of specimens to be tested
Five specimens shall be tested for each product for each of the machine and cross-machine directions and for
each structural junction (if the geocomposite is made up of three or more different layers of geosynthetics
and/or mineral materials).
7 Test specimens
7.1 Selection of test specimens
Take specimens in accordance with ISO 9862.
7.2 Dimension of test specimens
Cut specimens according to the shapes and dimensions shown in Figures 3 and 4,
...
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