oSIST prEN 17318-2:2019

Railway applications - Infrastructure - Plastic sleepers and bearers - Part 2: Product testing

This part of the EN xxxxx series specifies the test methods applicable to plastic sleepers and bearers
with their rail fastening system.

Bahnanwendungen - Infrastruktur - Gleis- und Weichenschwellen aus Kunststoff - Teil 2: Produktprüfung

Applications ferroviaires - Infrastructure - Traverses et supports en plastique - Partie 2 : Essais sur produits

Železniške naprave - Infrastruktura - Plastični pragi in kretniški plastični pragi - 2. del: Preskušanje izdelka

General Information

• Status: Not Published
• Public Enquiry End Date: 28-Feb-2019
• ICS: 45.080 - Rails and railway components
• Technical Committee: IŽNP - Reilway applications
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 21-Dec-2018
• Due Date: 10-May-2019
• Completion Date: 07-Mar-2019
• Directive: 2008/57/EC - Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Ref Project: prEN 17318-2 - Railway applications - Infrastructure - Plastic sleepers and bearers - Part 2: Product testing

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 17318-2:2019
01-februar-2019
äHOH]QLãNHQDSUDYH,QIUDVWUXNWXUD3ODVWLþQLSUDJLLQNUHWQLãNLSODVWLþQLSUDJL
GHO3UHVNXãDQMHL]GHOND
Railway applications - Infrastructure - Plastic sleepers and bearers - Part 2: Product
testing
Bahnanwendungen - Infrastruktur - Gleis- und Weichenschwellen aus Kunststoff - Teil 2:
Produktprüfung
Applications ferroviaires - Infrastructure - Traverses et supports en plastique - Partie 2 :
Essais sur produits
Ta slovenski standard je istoveten z: prEN 17318-2
ICS:
45.080 7UDþQLFHLQåHOH]QLãNLGHOL Rails and railway
components
oSIST prEN 17318-2:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17318-2:2019


DRAFT
EUROPEAN STANDARD
prEN 17318-2
NORME EUROPÉENNE

EUROPÄISCHE NORM

December 2018
ICS 45.080
English Version

Railway applications - Infrastructure - Plastic sleepers and
bearers - Part 2: Product testing
Applications ferroviaires - Infrastructure - Traverses et Bahnanwendungen - Infrastruktur - Gleis- und
supports en plastique - Partie 2 : Essais sur produits Weichenschwellen aus Kunststoff - Teil 2:
Produktprüfung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 256.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17318-2:2018 E
worldwide for CEN national Members.

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Contents Page

European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Product characteristics . 7
4.1 General . 7
4.2 Bending resistance . 7
4.2.1 Test arrangements . 7
4.2.2 Initial reference test loads . 10
4.2.3 Test procedures at the centre section for the negative bending moments . 11
4.2.4 Test procedures at the centre section for the positive bending moments - Fatigue
test at the centre section for positive bending moments . 14
4.2.5 Test procedures at the rail seat . 15
4.3 Stiffness with GBP or with FP at rail seat . 17
4.4 Thermal expansion . 18
4.4.1 Principle . 18
4.4.2 Apparatus . 18
4.4.3 Procedure. 18
4.5 Interface between the rail and the sleeper . 20
4.5.1 General . 20
4.5.2 Permanent deformation of screw/insert in function of temperature . 20
4.5.3 Fastening system . 22
4.5.4 Electrical resistance . 22
4.5.5 Cast-in and glued-in fastening components . 23
4.6 Fire. 23
Annex A (informative) Test procedures for stiffness measurement of plastic sleeper with
GBP . 24
A.1 Static test procedure . 24
A.1.1 Principle . 24
A.1.2 Apparatus . 24
A.1.2.1 Controlled temperature test area . 24
A.1.2.2 GBP (Geometric Ballast Plate) . 24
A.1.2.3 Articulated support . 24
A.1.2.4 Slope taking-up wedge . 24
A.1.2.5 Actuator . 24
A.1.2.6 Displacement measuring instruments . 24
A.1.2.7 Force measuring instruments . 24
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A.1.2.8 Recording equipment . 25
A.1.3 Procedure . 25
A.1.4 Test report . 27
A.2 Low frequency dynamic test procedure . 27
A.2.1 Principle . 27
A.2.2 Apparatus . 27
A.2.2.1 General . 27
A.2.2.2 Actuator . 28
A.2.2.3 Displacement measuring instruments . 28
A.2.2.4 Force measuring instruments . 28
A.2.2.5 Recording equipment . 28
A.2.3 Procedure . 28
A.2.4 Test report . 30
Annex B (informative) Test procedures for stiffness measurement of plastic sleeper with
FP . 31
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2008/57/EC aimed to be covered. 32
Bibliography . 34


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European foreword
This document (prEN 17318-2:2018) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This European Standard is one of the series EN 17318 “Railway applications – Infrastructure – Plastic
sleepers and bearers”, which consist of the following parts:
— Part 1: General requirements;
— Part 2: Product testing;
— Part 3: Material characteristics.
This European Standard is used as the technical basis for transaction between corresponding parties
(purchaser – supplier).
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 EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
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Introduction
This part of the standard defines the test methods for design approval testing for plastic sleepers and
bearers and is used in conjunction with the following parts:
— Part 1: General requirements;
— Part 3: Material characteristics.
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1 Scope
This document specifies the test methods applicable to plastic sleepers and bearers with their rail
fastening system.
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 13146-5, Railway applications - Track - Test methods for fastening systems - Part 5: Determination of
electrical resistance
EN 13146-10, Railway applications - Track - Test methods for fastening systems - Part 10: Proof load test
for pull-out resistance
EN 13230-2:2016, Railway applications - Track - Concrete sleepers and bearers - Part 2: Prestressed
monoblock sleepers
EN 13230-4:2016, Railway applications - Track - Concrete sleepers and bearers - Part 4: Prestressed
bearers for switches and crossings
EN 13481-3, Railway applications - Track - Performance requirements for fastening systems - Part 3:
Fastening systems for wood sleepers
EN 13481-5, Railway applications – Track – Performance requirements for fastening systems – Part 5:
Fastening systems for slab track
EN 13481-7, Railway applications - Track - Performance requirements for fastening systems - Part 7:
Special fastening systems for switches and crossings and check rails
EN 16730:2016, Railway applications - Track - Concrete sleepers and bearers with under sleeper pads
prEN 17318-1:2018, Railway applications - Infrastructure - Plastic sleepers and bearers - Part 1: General
requirements
EN ISO 7500-1:2018, Metallic materials – Verification of static uniaxial testing machines – Part 1:
Tension/compression testing machines – Verification and calibration of the force-measuring system
(ISO 7500-1:2018)
EN ISO 9513:2012, Metallic materials - Calibration of extensometer systems used in uniaxial testing (ISO
9513:2012)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN 17318-1:2018 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 http://www.iso.org/obp
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4 Product characteristics
4.1 General
This clause defines the testing regime and rules for the acceptance of plastic sleepers and bearers.
The bending tests are defined for ballasted track. For ballastless steel bridge, the test arrangement shall
be reviewed in order to adapt to the real configuration of the bridge.
4.2 Bending resistance
4.2.1 Test arrangements
4.2.1.1 Rail seat section for the positive load test
The arrangement for the rail seat positive load test is shown in Figure 1, the value of L in relation to L
r p
is detailed in Table 2.
The load Fr is applied perpendicularly to the base of the sleeper.
The end of the sleeper opposite to the end being tested shall not be fixed.

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Key
1 rigid support
2 articulated support (see Annex A for the details of EN 13230-2 for sleepers or EN 13230-4 for
bearers)
3 resilient pad (see Annex A for the details of EN 13230-2 for sleepers or EN 13230-4 for bearers)
4 plastic sleeper
5 standard rail pad as defined by the purchaser
6 tapered packing (see Annex A for the details of EN 13230-2 for sleepers or EN 13230-4 for bearers)
7 lateral stop and base plate (if the fastening system consists of a baseplate)
C, C and locations of the vertical displacement measurement on the axis of the articulated support
1 2
C3
Figure 1 — Test arrangement at the rail seat section for the positive load test
The deformation “d” measured during the tests on the rail seat is calculated with the Formula (1):
C+C
13
dC−
2
2
 (1)
8
=

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Table 1 —Value of L in relation to L
r p
L in m L in m
p r
L < 0,349 0,3
p
0,4
0,350 ≤ L < 0,399
p
0,5
0,400 ≤ L < 0,449
p
0,6
L ≥ 0,450
p
The displacement measuring instruments shall be capable of measuring the displacement
within ± 0,02 mm.
The force measuring instrument shall comply with EN ISO 7500-1:2018, class 2 over the required range
of force.
4.2.1.2 Centre section for the negative load test
The arrangement for the negative centre load test is shown in Figure 2.

Key
1 rigid support
2 articulated support (see Annex A for the details of EN 13230-2 for sleepers or EN 13230-4 for
bearers)
3 resilient pad (see Annex A for the details of EN 13230-2 for sleepers or EN 13230-4 for bearers)
4 plastic monoblock sleeper
5 standard rail pad (with baseplate if the fastening system consists of a baseplate)
6 tapered packing (see Annex A for the details of EN 13230-2 for sleepers or EN 13230-4 for bearers)
C1, C2 and locations of the vertical displacement measurement on the axis of the articulated support of the rail
C3 seats and the centre of the sleeper
Figure 2 — Test arrangement at the centre section for the negative load test
The deformation “d” measured during the tests on the centre section for the negative load is calculated
using Formula (1).
The displacement measuring instruments shall be capable of measuring the displacement
within ± 0,02 mm.
The force measuring instrument shall comply with EN ISO 7500-1:2018, class 2 over the required range
of force.
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4.2.1.3 Centre section for the positive load test
The test arrangement for the positive centre load test is shown in Figure 3.

Key
1 rigid support
2 articulated support (see Annex A for the details of EN 13230-2 for sleepers or EN 13230-4 for
bearers)
3 resilient pad (see Annex A for the details of EN 13230-2 for sleepers or EN 13230-4 for bearers)
4 plastic monoblock sleeper
C1, C2 and locations of the vertical displacement measurement on the axis of the articulated support of the rail
C3 seats and the centre of the sleeper
Figure 3 — Test arrangement at the centre section for the positive load test
The deformation “d” measured during the tests on the centre section for the negative load is calculated
using Formula (1).
The displacement measuring instruments shall be capable of measuring the displacement
within ± 0,02 mm.
The force measuring instrument shall comply with EN ISO 7500-1:2018, class 2 over the required range
of force.
4.2.2 Initial reference test loads
Fr is calculated from the geometry given in Figure 4 and values from Table 3 using Formula (2):
0
4 M
k ,r,pos
Fr =
0
L − 0,1
r
in kN (2)
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Table 2 —Value of Fr in relation to L
0 r
L in m 0,3 0,4 0,5 0,6
r
Fr in 20 M 13 M 10 M 8 M
k,r,pos k,r,pos k,r,pos k,r,pos
0
kN
Fc and Fc are calculated from the geometry given respectively in Figures 2 and 3 using Formula (3)
0 0n
and Formula (4):
4 M
k ,c,pos
Fc =
0
L − 0,1
c
in kN (3)
2 M
k,c,neg
Fc =
0n
L 3− 0,1
c
in kN (4)
4.2.3 Test procedures at the centre section for the negative bending moments
4.2.3.1 Stiffness in the centre section
The stiffness test at the centre section for design approval test is to apply a load with measurement of
the deformation of the sleeper.
The test arrangement is in accordance with 4.2.1.2.
Static stiffness:
Apply a vertical force Fc to the actuator. Then reduce the force to (0,07 · Fc ) and repeat this cycle
0,n 0,n
of loading and unloading three more times with a maximum speed of 120 kN/min. Maintain the applied
force (0,07 · Fc ), then record the displacement as a function of the load whilst increasing the applied
0,n
force to Fc (this loading corresponds to the fifth loading).
0,n

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Key
1 5th loading: temporal laps to record the displacement whilst increasing the applied force to Fc0,n
2 four first loadings: preconditioning
3 time
4 if a dynamic stiffness is measured after the static stiffness test, the force is maintained to 0,07 Fc0,n
Figure 4 — Temporal graph
Calculate the static stiffness of fifth loading from the following formula:
0,4⋅Fc
0,n
k = (5)
cn,stat1
∆d
1
0,9⋅Fc
0,n
k = (6)
cn,stat 2
∆d
2
where
Δd Variation of deformation of the sleeper between the loads (0,1 · Fc ) and (0,5 · Fc )
1
0,n 0,n
Δd Variation of deformation of the sleeper between the loads (0,1 · Fc ) and Fc
2
0,n 0,n
The report shall include: Fc , k , k and Curve (deformation of sleeper in function of the load
0,n cn,stat1 cn,stat2
Fc,n).
Dynamic stiffness k :
cn,dyn1
Apply a cyclic force of Fc (= 0,1 · Fc ) to Fc (= 0,5 · Fc ) at (5 ± 1) Hz for 1000 cycles. During
n,min n,test1
0n 0n
the last 100 cycles, record the applied load and the deformation of the sleeper for at least 10 cycles.
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Key
A force
B displacement
C time
Figure 5 — Low frequency dynamic curves
Calculate the low frequency dynamic stiffness on 10 cycles recorded from the following formula:
Fc −Fc
1
n,test1 n,min
k = ⋅ (7)
cn,dyn1 ∑
10 ∆d
10
1
where
Δd Variation of deformation of the sleeper between the loads (Fc ) and (Fc )
1
n,min n,test1
The report shall include: (0,5 · Fc ), k and Curve (deformation of sleeper as a function of the load
cn,dyn1
0n
Fc ).
n
Dynamic stiffness kcn,dyn2:
Apply a cyclic force of Fc (= 0,1 · Fc ) to Fc (= Fc ) at (5 ± 1) Hz for 1000 cycles. During the last
n,min 0n n,test2 0n
100 cycles, record the applied load and the deformation of the sleeper for at least 10 cycles.
Calculate the low frequency dynamic stiffness on 10 cycles recorded from the following formula:
Fc −Fc
1
n,test 2 n,min
k = ⋅ (8)
cn,dyn2 ∑
10 ∆d
10
2
where
Δd Variation of deformation of the sleeper between the loads (Fc ) and (Fc )
2
n,min n,test2
The report shall include: Fc , k and Curve (deformation of sleeper as a function of the load Fc ).
0n cn,dyn2 n
4.2.3.2 Fatigue test and ultimate load at the centre section for negative bending moments
Before the fatigue test at the centre section for negative bending moments, the static and dynamic
stiffness tests are to be carried out in accordance with 4.2.3.1.
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The purchaser shall define the test bending moment and the acceptable displacement as a function of
maintenance policy. The test load Fc shall be the lesser of either the test load Fc calculated from the
fat,n 0,n
maximum bending moment, or the load leading to the acceptable deflection.
The fatigue test at the centre section for negative bending moments for design approval test is to apply
a sinusoidal load between (0,1 · Fc and Fc ) at a frequency (f) between 2 Hz and 10 Hz (identical
fat,n fat,n
frequency maintained for the duration of the test) and during 2 million of cycles. The test arrangement
is in accordance with 4.2.1.2. During the fatigue test, the temperature of the sleeper shall be less than
40 °C.
During loading, the deformation of sleeper is measured as a function of the load Fc for 1 000 cycles and
n
every 500.000 cycles.
After the 2 million cycles, the static and dynamic stiffness tests are to be carried out in accordance with
4.2.3.1.
After the fatigue test, increase the load to failure or maximum deflection of 20 mm of the sleeper with a
maximum speed of 120 kN/min.
The report shall include: Curves during the 2 million cycles (displacement of actuator as a function of
the load Fc ), stiffness results and the variation of static and dynamic stiffness (Δk ) before and after
n c,n
the fatigue test.
4.2.3.3 Permanent deformation test at the centre section for negative bending moments
The permanent deformation test at the centre section for negative bending moments for design
approval test is to apply a constant load between Fc for a period of 168 h. The test arrangement is
perm,n
in accordance with 4.2.1.2. The load Fc is the force at acceptable displacement as a function of
perm,n
maintenance policy and shall be defined by the purchaser.
The deformation in the centre of the sleeper is measured before loading, every 24 h during the loading,
just after removal of the load and every 24 h after removal of the load during the 168 h period.
The report shall include: the permanent deformation.
4.2.4 Test procedures at the centre section for the positive bending moments - Fatigue test at the
centre section for positive bending moments
Before the fatigue test at the centre section for positive bending moments, the static and dynamic
stiffness tests are to be carried out in accordance with 4.2.3.1 at a room temperature of (23 ± 5) °C.
The purchaser shall define the test bending moment and the permissible deflection at the centre. The
test load Fc shall be the lesser of either the test load Fc calculated from the maximum bending
fat 0
moment or the load leading to the permissible deflection.
The fatigue test at the centre section for positive bending moments for design approval test is to apply a
sinusoidal load between (0,1 · Fcfat and Fcfat) at a frequency (f) between 2 Hz and 10 Hz (identical
frequency maintained for the duration of test) and for 2 million cycles. The test arrangement is in
accordance with 4.2.1.3. During the fatigue test, the temperature of the sleeper shall be less than 40 °C.
During the loading, the deformation of sleeper is measured as a function of the load Fc for 1 000 cycles
and every 500.000 cycles.
After the 2 million cycles, the static and dynamic stiffness tests are to be carried out in accordance with
4.2.3.1 at a room temperature of (23 ± 5) °C.
The report shall include: Curves during the 2 million cycles (displacement of actuator as a function of
the load Fc), stiffness results and the variation of static and dynamic stiffness (Δk ) before and after the
c,n
fatigue test.
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4.2.5 Test procedures at the rail seat
4.2.5.1 Stiffness at the rail seat
The stiffness test at the rail seat section for design approval test is to apply a load at the rail seat and to
measure deformation of the sleeper.
The test arrangement is in accordance with 4.2.1.1.
Static stiffness:
Apply a vertical force Fr in the actuator. Then reduce the force to (0,07 · Fr ) and repeat this cycle of
0 0
loading and unloading three more times with a maximum speed of 120 kN/min. Maintain the applied
force (0,07 · Fr ), then record the displacement in function of the load whilst increasing the applied
0
force to Fr (this loading corresponds to the fifth loading).
0

Key
1 5th loading: temporal laps to record the displacement whilst increasing the applied force to Fr0
2 four first loadings: preconditioning
3 time
4 if a dynamic stiffness is measured after the static stiffness test, the force is maintained to 0,07 Fr0
Figure 6 — Temporal graph
Calculate the static stiffness of fifth loading from the following formula:
0,4⋅Fr
0
k = (9)
r,stat1
∆d
1
0,9⋅Fr
0
k =
(10)
r,stat 2
∆d
2
where
Δd Variation of deformation of the sleeper between the loads (0,1 · Fr ) and (0,5 · Fr )
1
0 0
Δd Variation of deformation of the sleeper between the loads (0,1 · Fr ) and Fr
2
0 0
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The report shall include: Fr , k , k and Curve (deformation of sleeper as a function of the load Fr).
0 r,stat1 r,stat2
Dynamic stiffness k :
r,dyn1
Apply a cyclic force of Fr (= 0,1 · Fr ) to Fr (= 0,5 · Fr ) at (5 ± 1) Hz for 1000 cycles. During the
min test1
0 0
last 100 cycles, record the applied load and the deformation of the sleeper for at least 10 cycles.

Key
A force
B displacement
C time
Figure 7 — Low frequency dyna
...