SIST EN ISO 25619-1:2009
(Main)Geosynthetics - Determination of compression behaviour - Part 1: Compressive creep properties (ISO 25619-1:2008)
Geosynthetics - Determination of compression behaviour - Part 1: Compressive creep properties (ISO 25619-1:2008)
This standard describes index test methods for determining the compressive behaviour of geosynthetics.The test specimens can be subjected either to normal compressive loading or to a combination of normal compressive loading and shear loading. Products which are sensitive to shear failure, i.e. which have a columnar or cuspated structure, should be tested with both normal and shear loads applied (see clause 6), all other products can be tested with a normal load only (see clause 5).The tests are carried out with the specimen dry or immersed in water.
Geokunststoffe - Bestimmung des Druckverhaltens - Teil 1: Eigenschaften des Druckkriechens (ISO 25619-1:2008)
Dieser Teil der ISO 25619 legt Index-Prüfverfahren zur Bestimmung der Eigenschaften des Druckkriechens von geosynthetischen Produkten fest. Die Messproben werden entweder einer normalen Druckbean¬spruchung oder einer Kombination von normaler Druck- und Scherbeanspruchung ausgesetzt.
Das Prüfverfahren nur mit Druckbeanspruchung (siehe Abschnitt 5) ist das Standardverfahren.
Das Prüfverfahren, bei welchem sowohl Druck- als auch Scherkräfte angewandt werden (siehe Abschnitt 6), ist für Produkte vorgesehen, die gegen Scherbruch anfällig sind, d. h. Produkte mit einer säulenartigen oder kegel- oder pyramidenförmigen Struktur.
Die Prüfungen werden an trockenen oder in Wasser eingetauchten Messproben durchgeführt. Die Durchführung der Prüfung in Wasser eingetauchter Messproben ist dafür vorgesehen, wenn irgendeinTeil des Geokunststoff-Produktes ein hydrophiles Polymer enthält.
Géosynthétiques - Détermination du comportement en compression - Partie 1: Propriétés de fluage en compression (ISO 25619-1:2008)
L'ISO 25619‑1:2008 spécifie des méthodes d'essai de référence permettant de déterminer le comportement en compression des produits géosynthétiques. Les éprouvettes sont soumises soit à une charge de compression normale, soit à une combinaison de charge de compression normale et de charge de cisaillement.
Geosintetika - Ugotavljanje obnašanja pri tlačni obremenitvi - 1. del: Lastnosti lezenja pod tlačno obremenitvijo (ISO 25619-1:2008)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 25619-1:2009
01-maj-2009
1DGRPHãþD
SIST EN 1897:2001
*HRVLQWHWLND8JRWDYOMDQMHREQDãDQMDSULWODþQLREUHPHQLWYLGHO /DVWQRVWL
OH]HQMDSRGWODþQRREUHPHQLWYLMR ,62
Geosynthetics - Determination of compression behaviour - Part 1: Compressive creep
properties (ISO 25619-1:2008)
Geokunststoffe - Bestimmung des Druckverhaltens - Teil 1: Eigenschaften des
Druckkriechens (ISO 25619-1:2008)
Géosynthétiques - Détermination du comportement en compression - Partie 1:
Propriétés de fluage en compression (ISO 25619-1:2008)
Ta slovenski standard je istoveten z: EN ISO 25619-1:2008
ICS:
59.080.70 Geotekstilije Geotextiles
SIST EN ISO 25619-1:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 25619-1:2009
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SIST EN ISO 25619-1:2009
EUROPEAN STANDARD
EN ISO 25619-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2008
ICS 59.080.70 Supersedes EN 1897:2001
English Version
Geosynthetics - Determination of compression behaviour - Part
1: Compressive creep properties (ISO 25619-1:2008)
Géosynthétiques - Détermination du comportement en Geokunststoffe - Bestimmung des Druckverhaltens - Teil 1:
compression - Partie 1: Propriétés de fluage en Eigenschaften des Druckkriechens (ISO 25619-1:2008)
compression (ISO 25619-1:2008)
This European Standard was approved by CEN on 29 November 2008.
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 CEN 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 responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 25619-1:2008: E
worldwide for CEN national Members.
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SIST EN ISO 25619-1:2009
EN ISO 25619-1:2008 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 25619-1:2009
EN ISO 25619-1:2008 (E)
Foreword
This document (EN ISO 25619-1:2008) has been prepared by Technical Committee CEN/TC 189
"Geosynthetics", the secretariat of which is held by NBN, 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 June 2009, and conflicting national standards shall be withdrawn at
the latest by June 2009.
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 1897:2001.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EC Directive(s).
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
3
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SIST EN ISO 25619-1:2009
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SIST EN ISO 25619-1:2009
INTERNATIONAL ISO
STANDARD 25619-1
First edition
2008-12-15
Geosynthetics — Determination of
compression behaviour —
Part 1:
Compressive creep properties
Géosynthétiques — Détermination du comportement en
compression —
Partie 1: Propriétés de fluage en compression
Reference number
ISO 25619-1:2008(E)
©
ISO 2008
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SIST EN ISO 25619-1:2009
ISO 25619-1:2008(E)
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ii © ISO 2008 – All rights reserved
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SIST EN ISO 25619-1:2009
ISO 25619-1:2008(E)
Contents Page
Foreword. iv
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Test specimens.2
4.1 Sampling.2
4.2 Number and dimensions of test specimens .2
4.3 Conditioning.5
5 Normal compressive load method.6
5.1 Principle.6
5.2 Apparatus .6
5.3 Procedure .9
5.4 Calculations.9
5.5 Test report .10
6 Combined normal and shear load method.11
6.1 Principle.11
6.2 Apparatus .11
6.3 Procedure .14
6.4 Calculations.15
6.5 Test report .16
Annex A (informative) Variations to the index test procedure for site-specific tests .18
Annex B (informative) Typical curves .19
© ISO 2008 – All rights reserved iii
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SIST EN ISO 25619-1:2009
ISO 25619-1:2008(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 25619-1 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 189, Geosynthetics, in collaboration with ISO Technical Committee ISO/TC 221, Geosynthetics, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This first edition of ISO 25619-1 cancels and replaces EN 1897:2001, which has been technically revised. The
following technical changes have been introduced:
⎯ normative references have been updated;
⎯ definitions, in particular with regard to compressive creep strain (ε ), have been clarified;
cc
⎯ omission of conditioning of the test specimen has been allowed under specific circumstances, and the
circumstances under which immersed specimens should be tested have been specified;
⎯ a requirement has been included that the stress applied by the top plate on the specimen shall not
exceed 2 kPa;
⎯ calculation of compressive creep strain has been included in addition to total compressive strain; a
requirement has been included that it be referred to in the test report and that a plot of compressive creep
strain versus log (time) be provided (for both test methods).
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 behaviour.
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SIST EN ISO 25619-1:2009
INTERNATIONAL STANDARD ISO 25619-1:2008(E)
Geosynthetics — Determination of compression behaviour —
Part 1:
Compressive creep properties
1 Scope
This part of ISO 25619 specifies index test methods for determining the compressive creep properties of
geosynthetic products. The test specimens are subjected either to normal compressive loading or to a
combination of normal compressive loading and shear loading.
The test method with a normal load only (see Clause 5) is the standard method.
The test method in which both normal and shear loads are applied (see Clause 6) is intended for products that
are sensitive to shear failure, i.e. which have a columnar or cuspated structure.
The tests are carried out on dry specimens or on specimens immersed in water. The test is intended to be
carried out with the specimen immersed in water when any part of the geosynthetic product contains a
hydrophilic polymer.
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 3696, Water for analytical laboratory use — Specification and test methods
ISO 9862, Geosynthetics — Sampling and preparation of test specimens
ISO 9863-1, Geosynthetics — Determination of thickness at specified pressures — Part 1: Single layers
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
thickness
d
distance between the two rigid plates in contact with the specimen at any stage of the test
See Figures 1 and 2.
NOTE Thickness is measured in millimetres.
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SIST EN ISO 25619-1:2009
ISO 25619-1:2008(E)
3.2
initial thickness
d
i
thickness of the specimen under an applied normal stress of 2 kPa
NOTE Initial thickness is measured in millimetres, in accordance with ISO 9863-1.
3.3
initial compressed thickness
d
0
thickness measured 1 min after loading (normal loading) or 4 min after loading (normal and shear loading)
3.4
total compressive strain
ε
time-dependent change in thickness
NOTE Total compressive strain is expressed as a percentage of the initial thickness (d ).
i
3.5
compressive creep strain
ε
cc
time-dependant change in thickness of a material subjected to a constant compressive load (after reaching
the initial compressed thickness, d , of the specimen)
0
NOTE Compressive creep strain is expressed as a percentage of the initial compressed thickness.
3.6
compressive creep collapse
occurrence of a sudden increase in the speed of change of thickness of a specimen subjected to a constant
compressive load
4 Test specimens
4.1 Sampling
Specimens shall be taken in accordance with ISO 9862.
4.2 Number and dimensions of test specimens
Cut two specimens from the test sample for each test load; a new specimen is required for each test.
Each specimen shall satisfy the following criteria with regard to dimensions:
⎯ the specimen shall be square and have a minimum size of 100 mm × 100 mm (see Figures 1 and 2); if
the specimen has a structure in which loading is resisted at defined points or areas, then the loading plate
shall cover at least three complete points or areas in both directions (see Figure 3);
⎯ specimens shall be cut with the sides parallel to the length and width of the sample.
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SIST EN ISO 25619-1:2009
ISO 25619-1:2008(E)
a) Plan area
a
100 mm minimum, or at least three contact points in each direction.
b) Cross-sectional area
Key
d thickness of the specimen, in millimetres
Figure 1 — Dimensions of general test specimen
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SIST EN ISO 25619-1:2009
ISO 25619-1:2008(E)
a) Plan area
a
100 mm minimum, or a minimum of three contact lines on the top plate and a minimum of four contact lines on the
base plate.
b) Cross-sectional area
Key
1 specimen width
2 representative width of the specimen
d thickness of specimen, in millimetres
Figure 2 — Size of specimen of a geomat
(with wave structure or double-sided structured core of a drainage composite)
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SIST EN ISO 25619-1:2009
ISO 25619-1:2008(E)
a) Example for single-sided structured cores
b) Example for double-sided structured cores
Key
1 metal top plate, smooth surface (same size as specimen or larger)
2 metal base plate, smooth surface (larger than top plate)
d thickness of specimen, in millimetres
F applied normal force, in kilonewtons
N
Figure 3 — Loading arrangements for structured cores
4.3 Conditioning
The test specimens shall be conditioned and tested 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 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 testing in the 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 the limits. This information shall be included in the test report.
The test shall be carried out with the specimen immersed in water when any part of the geosynthetic product
contains a hydrophilic polymer. Where the test is to be carried out with the specimen immersed in water, the
specimen shall be soaked in water for 24 h prior to the test. Deionized water in accordance with ISO 3696
shall be used. The water shall be maintained at a temperature of (20 ± 2) °C.
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SIST EN ISO 25619-1:2009
ISO 25619-1:2008(E)
5 Normal compressive load method
5.1 Principle
The geosynthetic specimen is placed on the fixed base of the compression testing equipment. With an upper
loading plate, the vertical compressive load is applied and the change in thickness is recorded with time.
The vertical compressive load is applied to the specimen for a period of 1 000 h, or for a longer or shorter
period by agreement.
5.2 Apparatus
5.2.1 Compression testing equipment.
Compression testing equipment with a vertical travel greater than the initial thickness of the specimen shall be
used. It shall be
...
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