prEN 17318-3

SLOVENSKI STANDARD
01-februar-2019
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Railway applications - Infrastructure - Plastic sleepers and bearers - Part 3: Material
characteristics
Bahnanwendungen - Infrastruktur - Gleis- und Weichenschwellen aus Kunststoff - Teil 3:
Materialeigenschaften
Applications ferroviaires - Infrastructure - Traverses et supports en plastique - Partie 3 :
Caractéristiques des matériaux
Ta slovenski standard je istoveten z: prEN 17318-3
ICS:
45.080 7UDþQLFHLQåHOH]QLãNLGHOL Rails and railway
components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2018
ICS 45.080
English Version
Railway applications - Infrastructure - Plastic sleepers and
bearers - Part 3: Material characteristics
Applications ferroviaires - Infrastructure - Traverses et Bahnanwendungen - Infrastruktur - Gleis- und
supports en plastique - Partie 3 : Caractéristiques des Weichenschwellen aus Kunststoff - Teil 3:
matériaux Materialeigenschaften
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 17318-3:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Required material characteristics . 6
4.1 Resistance . 6
4.1.1 Chemical compatibility . 6
4.1.2 Environmental resistance . 6
4.2 Environmental compatibility . 7
4.3 Mechanical properties . 8
Bibliography . 12

European foreword
This document (prEN 17318-3:2018) 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).
Introduction
This part of the standard describes the material characteristics and test methods for mechanical
properties for plastic sleepers and bearers and is used in conjunction with the following parts:
— Part 1: General requirements;
— Part 2: Product testing.
1 Scope
This document specifies the characteristics of sleepers and bearers made from plastic or reinforced
plastic materials. It applies to sleepers or bearers for railway infrastructure.
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.
prEN 17318-1:2018, Railway applications - Infrastructure - Plastic sleepers and bearers - Part 1: General
requirements
EN ISO 62, Plastics - Determination of water absorption (ISO 62)
EN ISO 178, Plastics - Determination of flexural properties (ISO 178)
EN ISO 179-1, Plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact
test (ISO 179-1)
EN ISO 306, Plastics - Thermoplastic materials - Determination of Vicat softening temperature (VST) (ISO
306)
EN ISO 527-2, Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and
extrusion plastics (ISO 527-2)
EN ISO 527-4, Plastics - Determination of tensile properties - Part 4: Test conditions for isotropic and
orthotopic fibre-reinforced plastic composites (ISO 527-4)
EN ISO 604, Plastics - Determination of compressive properties (ISO 604)
ISO 4582, Plastics — Determination of changes in colour and variations in properties after exposure to
glass-filtered solar radiation, natural weathering or laboratory radiation sources
EN ISO 4892-2:2013, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps
(ISO 4892-2:2013)
EN ISO 14125, Fibre-reinforced plastic composites - Determination of flexural properties (ISO 14125)
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
4 Required material characteristics
4.1 Resistance
4.1.1 Chemical compatibility
The material of the plastic sleepers shall be resistant against all those chemicals that can regularly
contaminate the sleepers in conventional railway traffic.
These are e.g.: oils / grease / hydrocarbons (media dripping from railway vehicles), possibly de-icing
salts and herbicides / fungicides from weed control on the railway track.
The manufacturer has to prove the resistance to chemical media in suitable form, if necessary through
studies and demonstration of transferable knowledge from other application cases.
If customers want a high resistance to specific chemicals (e.g. for use in loading and unloading areas of
chemical factories, oil and chemical transhipment ports etc.), the customers have to define these
requirements and the sleeper manufacturer has to prove this if necessary.
The user can specify tests if the manufacturer's proofs are not satisfactory according to the generally
recognized state of scientific and technical knowledge, or are not plausible.
4.1.2 Environmental resistance
4.1.2.1 Weathering resistance
The load bearing capacities of the sleepers at the end of its service life shall remain sufficient for service
regardless of weathering effect.
The requirements for the weathering resistance of the materials shall be agreed on between the
interested parties.
The weathering resistance shall be demonstrated either:
— by a documented and substantially proven experience;
— or by assessing the changes of properties according to ISO 4582 after an exposure to xenon-arc
lamps in accordance with EN ISO 4892-2:2013, Method A, Cycle 1.
4.1.2.2 Frost in connection with water
...