Geosynthetics - Determination of compression behaviour - Part 1: Compressive creep properties (ISO 25619-1:2021)

This document 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 combined 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.

Geokunststoffe - Bestimmung des Druckverhaltens - Teil 1: Eigenschaften des Druckkriechens (ISO 25619-1:2021)

Dieses Dokument legt Index Prüfverfahren zur Bestimmung der Eigenschaften des Druckkriechens von geosynthetischen Produkten fest. Die Messproben werden entweder einer normalen Druckbeanspruchung oder einer Kombination von normaler Druck  und Scherbeanspruchung ausgesetzt.
Das Prüfverfahren nur mit normaler Druckbeanspruchung (siehe Abschnitt 5) ist das Standardverfahren.
Das Prüfverfahren, bei dem kombinierte Druck  und 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 irgendein Teil des Geokunststoff Produktes ein hydrophiles Polymer enthält.

Géosynthétiques - Détermination du comportement en compression - Partie 1: Propriétés de fluage en compression (ISO 25619-1:2021)

Geosintetika - Ugotavljanje obnašanja pri tlačni obremenitvi - 1. del: Lastnosti lezenja pod tlačno obremenitvijo (ISO 25619-1:2021)

General Information

Status
Published
Public Enquiry End Date
31-May-2020
Publication Date
13-Apr-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Mar-2021
Due Date
29-May-2021
Completion Date
14-Apr-2021

RELATIONS

Buy Standard

Standard
SIST EN ISO 25619-1:2021
English language
25 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN ISO 25619-1:2021
01-maj-2021
Nadomešča:
SIST EN ISO 25619-1:2009
Geosintetika - Ugotavljanje obnašanja pri tlačni obremenitvi - 1. del: Lastnosti
lezenja pod tlačno obremenitvijo (ISO 25619-1:2021)

Geosynthetics - Determination of compression behaviour - Part 1: Compressive creep

properties (ISO 25619-1:2021)
Geokunststoffe - Bestimmung des Druckverhaltens - Teil 1: Eigenschaften des
Druckkriechens (ISO 25619-1:2021)
Géosynthétiques - Détermination du comportement en compression - Partie 1:
Propriétés de fluage en compression (ISO 25619-1:2021)
Ta slovenski standard je istoveten z: EN ISO 25619-1:2021
ICS:
59.080.70 Geotekstilije Geotextiles
SIST EN ISO 25619-1:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 25619-1:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 25619-1:2021
EN ISO 25619-1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2021
EUROPÄISCHE NORM
ICS 59.080.70 Supersedes EN ISO 25619-1:2008
English Version
Geosynthetics - Determination of compression behaviour -
Part 1: Compressive creep properties (ISO 25619-1:2021)

Géosynthétiques - Détermination du comportement en Geokunststoffe - Bestimmung des Druckverhaltens -

compression - Partie 1: Propriétés de fluage en Teil 1: Eigenschaften des Druckkriechens (ISO 25619-

compression (ISO 25619-1:2021) 1:2021)
This European Standard was approved by CEN on 21 February 2021.

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-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 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, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 25619-1:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 25619-1:2021
EN ISO 25619-1:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 25619-1:2021
EN ISO 25619-1:2021 (E)
European foreword

This document (EN ISO 25619-1:2021) has been prepared by Technical Committee ISO/TC 146 "Air

quality" 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 September 2021, and conflicting national standards

shall be withdrawn at the latest by September 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 25619-1:2008.

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, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 25619-1:2021 has been approved by CEN as EN ISO 25619-1:2021 without any

modification.
---------------------- Page: 5 ----------------------
SIST EN ISO 25619-1:2021
---------------------- Page: 6 ----------------------
SIST EN ISO 25619-1:2021
INTERNATIONAL ISO
STANDARD 25619-1
Second edition
2021-02
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 25619-1:2021(E)
ISO 2021
---------------------- Page: 7 ----------------------
SIST EN ISO 25619-1:2021
ISO 25619-1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 25619-1:2021
ISO 25619-1:2021(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 .............................................................................................................................................................................................. 6

5 Normal compressive load method ..................................................................................................................................................... 6

5.1 Principle ........................................................................................................................................................................................................ 6

5.2 Apparatus .................................................................................................................................................................................................... 7

5.3 Procedure .................................................................................................................................................................................................... 8

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 .................................................................................................................................................................................................12

6.4 Calculations .............................................................................................................................................................................................13

6.5 Test report ................................................................................................................................................................................................14

Annex A (informative) Variations to the index test procedure for site-specific tests .....................................16

Annex B (informative) Typical curves ..............................................................................................................................................................17

© ISO 2021 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 25619-1:2021
ISO 25619-1:2021(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, 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 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 declarations 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 of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 221, Geosynthetics, in collaboration with

the European Committee for Standardization (CEN) Technical Committee CEN/TC 189, Geosynthetics,

in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This second edition cancels and replaces the first edition (ISO 25619-1:2008) which has been technically

revised.
The main changes compared to the previous edition are as follows:
— normative references have been updated;

— dimension and shape of the specimen for different types of geosynthetics have been introduced;

— calculation of the correct area for structure in which loading is resisted at defined points or at

defined lines have been introduced;

— the drawing of a test apparatus for compressive shear test that was not described in the test has

been deleted.
A list of all parts in the ISO 25619 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 25619-1:2021
INTERNATIONAL STANDARD ISO 25619-1:2021(E)
Geosynthetics — Determination of compression
behaviour —
Part 1:
Compressive creep properties
1 Scope

This document 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 combined 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 documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 10318-1, Geosynthetics — Part 1: Terms and definitions
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 10318-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
thickness

distance between the two rigid plates in contact with the specimen at any stage of the test

Note 1 to entry: See Figures 1 and 2.
© ISO 2021 – All rights reserved 1
---------------------- Page: 11 ----------------------
SIST EN ISO 25619-1:2021
ISO 25619-1:2021(E)
Note 2 to entry: Thickness is measured in millimetres.
3.2
initial thickness
thickness (3.1) of the specimen under an applied normal stress of 2 kPa

Note 1 to entry: Initial thickness is measured in millimetres, in accordance with ISO 9863-1.

3.3
initial compressed thickness

thickness (3.1) measured 1 min after loading (normal loading) or 4 min after loading (combined normal

and shear loading)
3.4
total compressive strain
time-dependent change in thickness (3.1)

Note 1 to entry: Total compressive strain is expressed as a percentage of the initial thickness, d .

3.5
compressive creep strain

time-dependant change in thickness (3.1) of a material subjected to a constant compressive load (after

reaching the initial compressed thickness (3.3), d , of the specimen)

Note 1 to entry: Compressive creep strain is expressed as a percentage of the initial compressed thickness, d .

3.6
compressive creep collapse

occurrence of a sudden increase in the speed of change of thickness (3.1) of a specimen subjected to a

constant compressive load
3.7
machine direction

direction of manufacture of a geosynthetic product (the warp direction for woven geotextiles)

3.8
cross-machine direction
CMD

direction perpendicular to the direction of manufacture of a geosynthetic product (the weft direction

for woven geotextiles)
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);

2 © ISO 2021 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 25619-1:2021
ISO 25619-1:2021(E)

— 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 1 and

Figure 3 a);

— if the specimen has a structure in which loading is resisted at defined lines, then the specimen shall

have a minimum of three contact lines on top loading plate and at least four complete lines on the

fixed base plate(see Figure 2 and Figure 3 b);

— specimens shall be cut with the sides parallel in MD and CMD of the sample. MD and CMD direction

shall be indicated on the sample.

a) Plan view of the specimen, with indication of defined points or areas where loading is

resisted
b) Cross-section of the specimen
Key
d thickness of the specimen, in millimetres
100 mm minimum, or at least three contact points in each direction.
Figure 1 — Dimensions of general test specimen
© ISO 2021 – All rights reserved 3
---------------------- Page: 13 ----------------------
SIST EN ISO 25619-1:2021
ISO 25619-1:2021(E)

a) Plan view of the specimen, with indication of defined lines where loading is resisted

b) Cross-section of the specimen
4 © ISO 2021 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 25619-1:2021
ISO 25619-1:2021(E)

c) Plan view of the specimen, with structure in which loading is resisted at defined lines in

diagonal directions
Key
1 specimen width
2 representative width of the specimen
d thickness of specimen, in millimetres

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.

100 mm minimum, or a minimum of three ribs connecting each side to the perpendicular side, for each set of ribs.

Figure 2 — Size of specimen with a structure in which loading is resisted at defined lines in MD

or CMD direction, or with a structure in which loading is resisted at defined lines in diagonal

directions

a) Example for a specimen with a structure in which loading is resisted at defined points or areas

© ISO 2021 – All rights reserved 5
---------------------- Page: 15 ----------------------
SIST EN ISO 25619-1:2021
ISO 25619-1:2021(E)

b) Example for a specimen with a structure in which loading is resisted at defined lines in MD or

CMD direction
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
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 (see Figur
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.