EN 17323:2020
(Main)Geosynthetics - Determination of tensile properties of Polymeric Geosynthetic Barriers
Geosynthetics - Determination of tensile properties of Polymeric Geosynthetic Barriers
This document specifies test methods for the determination of tensile properties of polymeric geosynthetic barriers PE (e.g. PE-HD and PE-LLD), FPO (e.g. EVA, FPP, and PE-VLD), PVC-P and EPDM.
Method A is suitable for testing polymeric geosynthetic barriers (GBR-P), made of PVC-P, EPDM and FPO (e.g. EVA, FPP and PE-VLD), non-reinforced (including maximum 80gsm glass fleece) and without backing.
Method B is suitable for testing polymeric geosynthetic barriers (GBR-P) made of PE (e.g. PE-HD and PE-LLD), non-reinforced and without backing.
Method C is suitable for testing polymeric geosynthetic barriers (GBR-P), reinforced and/or with backing.
Method D is suitable for measuring modulus (if required) of all non-reinforced GBR-P.
NOTE For homogenous polymers not listed above, method A and D can be used.
Geokunststoffe - Geosynthetische Kunststoffdichtungsbahnen - Bestimmung von Zugeigenschaften
Dieses Dokument legt Prüfverfahren für die Bestimmung von Zugeigenschaften von geosynthetischen Kunststoffdichtungsbahnen aus PE (z. B. PE HD und PE LLD), FPO (z. B. EVA, FPP und PE VLD), PVC P und EPDM fest.
Verfahren A eignet sich für die Prüfung von geosynthetischen Kunststoffdichtungsbahnen (GBR P) aus PVC P, EPDM und FPO (z. B. EVA, FPP und PE VLD), nicht bewehrt (einschließlich höchstens 80 g/m2 Glasvlies) und ohne Kaschierung.
Verfahren B eignet sich für die Prüfung von geosynthetischen Kunststoffdichtungsbahnen (GBR P) aus PE (z. B. PE HD und PE LLD), nicht bewehrt und ohne Kaschierung.
Verfahren C eignet sich für die Prüfung von geosynthetischen Kunststoffdichtungsbahnen (GBR P), bewehrt und/oder mit Kaschierung.
Verfahren D eignet sich für die Messung des Moduls (sofern erforderlich) aller nicht bewehrter GBR P.
ANMERKUNG Für vorstehend nicht aufgeführte homogene Polymere können Verfahren A und D angewendet werden.
Géosynthétiques - Détermination des propriétés en traction des géomembranes polymériques
Ce document traite des méthodes d’essai pour la détermination des propriétés en traction des géomembranes polymériques PE (comme par exemple PE-HD et PE-LLD), FPO (comme par exemple EVA, FPP, et PE-VLD), PVC-P et EPDM.
La méthode A est adaptée à l’essai des géomembranes polymériques (GBR-P) en PVC-P, EPDM et FPO (comme par exemple EVA, FPP et PE-VLD), non renforcées (y compris les voiles de verre 80 g/m2) et sans couche support.
La méthode B est adaptée à l’essai des géomembranes polymériques (GBR-P) constituées de PE (comme par exemple HDPE et PE-LLD), non renforcées et sans couche support.
La méthode C est adaptée à l’essai des géomembranes polymériques (GBR-P) renforcées et/ou avec couche support.
La méthode D est adaptée à la mesure du module (si nécessaire) de tous les produits non renforcés GBR-P.
NOTE Pour les polymères homogènes non cités ci-avant, les méthodes d’essai A et D peuvent être utilisées.
Geosintetika - Ugotavljanje nateznih lastnosti polimernih geosintetičnih ovir
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2020
Geosintetika - Ugotavljanje nateznih lastnosti polimernih geosintetičnih ovir
Geosynthetics - Determination of tensile properties of Polymeric Geosynthetic Barriers
Geokunststoffe - Geosynthetische Kunststoffdichtungsbahnen - Bestimmung von
Zugeigenschaften
Géosynthétiques - Détermination des propriétés en traction des géomembranes
polymériques
Ta slovenski standard je istoveten z: EN 17323:2020
ICS:
59.080.70 Geotekstilije Geotextiles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17323
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2020
EUROPÄISCHE NORM
ICS 59.080.70
English Version
Geosynthetics - Determination of tensile properties of
Polymeric Geosynthetic Barriers
Géosynthétiques - Détermination des propriétés en Geokunststoffe - Geosynthetische
traction des géomembranes polymériques Kunststoffdichtungsbahnen - Bestimmung von
Zugeigenschaften
This European Standard was approved by CEN on 14 March 2020.
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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17323:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 6
5 Apparatus . 6
6 Test specimens . 7
7 Conditioning . 9
8 Procedure - Method A . 9
9 Procedure - Method B . 10
10 Procedure - Method C . 10
11 Procedure - Method D. 10
12 Calculations and expression of results . 11
13 Precision . 14
14 Test report . 14
Annex A (informative) Typical stress/elongation curves . 15
Bibliography . 19
European foreword
This document (EN 17323:2020) has been prepared by 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 November 2020, and conflicting national standards
shall be withdrawn at the latest by November 2020.
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.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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.
1 Scope
This document specifies test methods for the determination of tensile properties of polymeric
geosynthetic barriers PE (e.g. PE-HD and PE-LLD), FPO (e.g. EVA, FPP, and PE-VLD), PVC-P and EPDM.
Method A is suitable for testing polymeric geosynthetic barriers (GBR-P), made of PVC-P, EPDM and
FPO (e.g. EVA, FPP and PE-VLD), non-reinforced (including maximum 80 g/m glass fleece) and without
backing.
Method B is suitable for testing polymeric geosynthetic barriers (GBR-P) made of PE (e.g. PE-HD and
PE-LLD), non-reinforced and without backing.
Method C is suitable for testing polymeric geosynthetic barriers (GBR-P), reinforced and/or with
backing.
Method D is suitable for measuring modulus (if required) of all non-reinforced GBR-P.
NOTE For homogenous polymers not listed above, method A and D can be used.
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.
EN 1849-2, Flexible sheets for waterproofing - Determination of thickness and mass per unit area - Part 2:
Plastics and rubber sheets for roof waterproofing
EN ISO 7500-1, Metallic materials - Calibration and verification of static uniaxial testing machines - Part
1: Tension/compression testing machines - Calibration and verification of the force-measuring system (ISO
7500-1)
EN ISO 9862, Geosynthetics - Sampling and preparation of test specimens (ISO 9862)
EN ISO 9863-1, Geosynthetics - Determination of thickness at specified pressures - Part 1: Single layers
(ISO 9863-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
thickness
d
distance between the upper and lower surfaces of a geosynthetic, measured normal to the surfaces and
under a specified pressure, expressed in mm
3.2
width
b
the initial dimension of the parallel sided portion of the specimen, expressed in mm
3.3
cross sectional area
A
product of initial width b (mm) and thickness d (mm) of a test specimen, expressed in square
millimetres (mm )
3.4
gauge length
l
distance between two reference points, when using an extensometer, located on the specimen parallel
to the applied load, expressed in mm
3.5
reference length
l
r
distance for calculating tensile elongation, when not using an extensometer, expressed in mm
3.6
yield point
point on the stress-elongation curve, other than the failure point, at which an increase in strain
(elongation) occurs without an increase in stress
Note 1 to entry: For semi-crystalline polymers the first occurrence in the tensile test where there is an increase in
strain (elongation) without an increase in stress.
3.7
tensile stress at yield point
σ
y
first stress at which an increase in strain (elongation) occurs without an increase in stress, expressed in
N/mm
Note 1 to entry: It may be less than maximum attainable stress.
3.8
elongation at yield
ε
y
strain (elongation), expressed as a percentage, at the first occurrence in the tensile test where there is
an increase in strain (elongation) without an increase in stress
3.9
tensile stress at break
σ
b
stress, at the highest value of stress, just before break on the stress /elongation curve, expressed in
N/mm
Note 1 to entry: It may be less than the maximum attained stress.
3.10
elongation at break
ε
b
strain (elongation), expressed as a percentage, at the highest value of stress, just before break on the
stress /strain curve
3.11
maximum tensile strength (related to specimen width)
T
max
maximum tensile strength sustained by the test specimen during a tensile test, expressed in
N/specimen width (mm)
Note 1 to entry: Where there is more than one peak value, the first distinct peak shall be reported as the maximum
tensile strength. Further peaks can be reported; however, these shall be reported separately and numbered (e.g. 2,
3, 4). See Annex A for examples of stress/elongation curves.
3.12
elongation at maximum tensile strength
ε
p
strain (elongation) measured at maximum tensile strength sustained by the specimen during the tensile
test, expressed as a percentage
Note 1 to entry: Where there is more than one peak value, the elongation at the first distinct peak shall be
reported as the strain (elongation) at maximum tensile strength. Further peaks can be reported; however, these
shall be reported separately and numbered (e.g. 2, 3, 4). See Annex A for examples of stress/elongation curves.
3.13
secant modulus
E
1-2
slope of the stress/elongation curve in the elongation interval between 1 and 2 %, expressed in N/mm
4 Principle
The test specimen is extended along its major longitudinal axis at a constant speed until the specimen
ruptures. The force and increase in specimen length are continuously recorded throughout the test.
5 Apparatus
5.1 Testing machine
Tensile testing machine (constant rate of extension) complying with EN ISO 7500-1, class 1 or better, in
which the rate of increase in specimen length is uniform with time, fitted with a set of clamps or jaws
which are sufficiently wide to hold the entire width of the specimen and equipped with appropriate
means to limit slippage or damage.
5.2 Extensometer (where required)
Capable of measuring the distance between gauge marks on the specimen without any damage to the
specimen or slippage, ensuring that the measurement represents the true movement of the gauge
marks. Example: mechanical, optical, infrared or other types. All with an electrical output.
The extensometer shall be capable of measuring to an accuracy of ± 2 % of the indicated reading.
If any irregularity of the stress/strain (elongation) curve due to the extensometer is observed, this
result shall be discarded and another specimen shall be tested.
6 Test specimens
6.1 Preparation of test specimens
Prepare the test specimens over the full roll width and in accordance with EN ISO 9862.
The test specimens shall be punched so that the edges are smooth and free from notches: examination
with a low-power magnifier is recommended to check the absence of notches. Punch dies shall be kept
sharp by regular honing, and a suitable backing material shall be used with punch dies to ensure a
clean-cut edge.
A set of test specimens (machine and cross machine direction) with a mesh or fabric internal layer,
backing or laminated reinforcement shall have the same number of threads. Cutting of threads should
be avoided.
The test specimens shown in Figures 1, 2 and 4 shall be obtained by the use of punch dies.
6.2 Number of test specimens
Prepare a minimum of five test specimens in both the machine and cross-machine directions.
6.3 Dimensions of test specimens
6.3.1 Method A
Prepare test specimens in accordance with Figure 1.
Dimensions in millimetres
Key
b width of narrow parallel-sided portion: l initial distance between grips:
6 mm ± 0,4 mm 80 mm ± 2 mm
b width of ends: 25 mm ± 1 mm l overall length: ≥ 115 mm
l0 gauge length for extensometer: r1 small radius: 14 mm ± 1 mm
25 mm ± 0,25 mm
l1 length of narrow parallel-sided portion: r2 large radius: 25 mm ± 2 mm
33 mm ± 2 mm
Figure 1 — Test specimen for Method A
6.3.2 Method B
Prepare test specimens in accordance
...
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