kSIST prEN 13450:2018
(Main)Aggregates for railway ballast
Aggregates for railway ballast
Amendment to comply with CPR
Gesteinskörnungen für Gleisschotter
Diese Europäische Norm legt die Merkmale von Gesteinskörnungen zur Verwendung bei der Herstellung des Oberbaus von Bahnkörpern fest, die durch Aufbereitung natürlicher oder industriell hergestellter Stoffe oder rezyklierter gebrochener ungebundener Gesteinskörnungen gewonnen werden. Für die Zwecke dieser Norm werden die Gesteinskörnungen als Gleisschotter bezeichnet.
Anhang A (normativ) enthält eine Liste von betrachteten Ausgangsstoffen, die in den Anwendungsbereich der Norm fallen.
Festlegungen hinsichtlich der Bewertung und Überprüfung der Leistungsbeständigkeit (AVCP) von Gleisschotter nach dieser Europäischen Norm sind in FprEN 16236 zu finden.
Gesteinskörnungen für die Verwendung im Bauwesen müssen alle Anforderungen der einschlägigen Europäischen Normen über diese Stoffe erfüllen. Diese Normen legen sowohl allgemeine wie besondere Anforderungen an natürliche Gesteinskörnungen und rezyklierten Schotter, wie beispielsweise hinsichtlich der Stabilität bestimmter Arten von Basalt, fest.
Erneut verwendeter Gleisschotter wird von dieser Europäischen Norm nicht abgedeckt.
Granulats pour ballasts de voies ferrés
La présente Norme européenne spécifie les caractéristiques des granulats obtenus par traitement de granulats concassés naturels, artificiels ou recyclés utilisés dans la construction de la couche supérieure de la voie ferrée. Pour les besoins de la présente norme, les granulats sont appelés ballasts de voies ferrées.
Une liste des origines des matériaux qui ont été prises en considération et relèvent du domaine d'application de la présente norme est donnée à l'Annexe A (normative).
Les exigences pour l’évaluation et la vérification de la constance des performances (EVCP) des ballasts de voies ferrées sont données dans le FprEN 16236.
Les granulats utilisés dans la construction doivent respecter toutes les exigences des Normes européennes concernées pour les granulats. Ces dernières contiennent les exigences générales et particulières relatives aux granulats naturels, ballasts recyclés, et traitent par exemple de la stabilité de certains basaltes.
Les ballasts de voie ferré ne sont pas couverts par la présente Norme européenne
Agregati za grede železniških prog
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 13450:2015
01-julij-2015
Agregati za grede železniških prog
Aggregates for railway ballast
Gesteinskörnungen für Gleisschotter
Granulats pour ballasts de voies ferrés
Ta slovenski standard je istoveten z: prEN 13450
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
93.100 Gradnja železnic Construction of railways
oSIST prEN 13450:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 13450:2015
---------------------- Page: 2 ----------------------
oSIST prEN 13450:2015
EUROPEAN STANDARD
DRAFT
prEN 13450
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2015
ICS 91.100.15 Will supersede EN 13450:2002
English Version
Aggregates for railway ballast
Gesteinsk?nungen f? Gleisschotter
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 154.
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, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13450:2015 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
Contents Page
Foreword .4
1 Scope .6
2 Normative references .6
3 Terms and definitions .7
4 General requirements .8
5 Geometrical requirements .8
5.1 General .8
5.2 Railway ballast sizes .9
5.3 Grading .9
5.4 Content of fine particles .9
5.5 Fines content . 10
5.6 Particle shape - Flakiness index and shape index . 10
5.7 Particle length . 11
5.8 Percentage of crushed particles . 11
6 Physical requirements . 11
6.1 General . 11
6.2 Resistance to fragmentation . 11
6.2.1 Los Angeles . 11
6.2.2 Resistance to impact . 12
6.3 Resistance to wear . 12
6.4 Particle density and water absorption . 13
6.4.1 Particle density . 13
6.4.2 Water absorption . 13
7 Chemical requirements . 13
7.1 General . 13
7.2 Petrographic description . 13
7.3 Dangerous substances . 13
8 Durability . 13
8.1 General . 13
8.2 Magnesium sulfate soundness . 13
8.3 Freeze-thaw resistance . 14
8.3.1 Water absorption as a screening test for freeze-thaw resistance . 14
8.3.2 Resistance to freezing and thawing. 14
8.3.3 Resistance to freezing and thawing in the presence of salt (extreme conditions) . 14
8.4 Electrical conductivity . 15
8.5 Sonnenbrand . 15
9 Assessment and verification of constancy of performance . 16
10 Designation . 16
10.1 Designation and description . 16
10.2 Additional information for the description of railway ballast . 16
11 Marking and labelling . 16
Annex A (normative) Source materials considered in the development of EN 13450 and their
status in respect of the scope of this standard . 17
Annex B (informative) Sampling railway ballast at the construction site either from a railway
wagon or from the track . 20
2
---------------------- Page: 4 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
B.1 Introduction . 20
B.2 Sampling railway ballast from a railway wagon . 20
B.3 Sampling railway ballast from track without use of a steel frame . 20
B.4 Sampling railway ballast from track using a steel frame . 21
Annex C (informative) Guidance on interpretation of results when samples of railway ballast
have been taken from railway wagon or from track . 23
Annex D (normative) Conditions to be applied to the test procedure specified in EN 1367-2 for
the determination of the resistance of railway ballast to the magnesium sulfate test (see
7.2) . 24
D.1 General . 24
D.2 Apparatus . 24
D.3 Reagents. 24
D.4 Preparation of test specimens . 24
D.5 Procedure . 24
D.6 Calculation and expression of results . 24
D.7 Test report . 25
Annex E (normative) Conditions to be applied to the test procedure specified in EN 1367-1 for
determination of the resistance to freezing and thawing of railway ballast (see 8.3.2) . 26
E.1 General . 26
E.2 Exposure to freezing under water . 26
E.3 Test report . 26
Annex F (informative) Procedure for the incorporation of new source materials . 27
F.1 General procedure . 27
F.2 Format . 27
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Regulation . 28
ZA.1 Scope and relevant characteristics . 28
ZA.2 Procedure for AVCP of aggregates for railway ballast . 29
ZA.2.1 Systems of AVCP . 29
ZA.2.2 Declaration of performance (DoP) . 31
ZA.2.2.1 General . 31
ZA.2.2.2 Content. 32
ZA.2.2.3 Examples of DoP . 32
ZA.3 CE marking and labelling. 36
3
---------------------- Page: 5 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
Foreword
This document (prEN 13450:2015) has been prepared by Technical Committee CEN/TC 154 “Aggregates”,
the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13450:2002.
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 has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of Construction Products Regulation
(EU) No. 305/2001.
For relationship with EU Regulation, see informative Annex ZA, which is an integral part of this document.
The most significant technical changes compared to the previous edition include:
a) Harmonisation of vocabulary and Annex ZA to be consistent with Construction Product Regulations.
b) Unification of categories which are common across the four main aggregate standards: EN 12620,
EN 13043, EN 13139 and EN 13242.
c) Description of assessment and verification of conformity of performance of aggregates (AVCP) - type
testing and factory production control in a separate new standard prEN 16236.
d) Implementing general sentences on dangerous substances and adding a new normative Annex A dealing
with all source materials considered.
e) Unification of definitions which are common across the four main aggregate standards: EN 12620,
EN 13043, EN 13139 and EN 13242.
f) Insertion of a new clause “General Requirements”.
g) Update of the normative references.
h) Modification of the definition to “recycled railway ballast”.
i) Modification of categories for grading.
j) Modification of Tables 1, 2, 3, 4, 5, 6, 7, 8 and 9 due to changes in the category names and due to the
introduction of new categories.
k) Addition of new clauses 5.8 “Percentage of crushed particles”, 7. “Chemical requirements”,
7.2 “Petrographic description”, 8.3 “Freeze-thaw resistance” and 8.4 “Electrical conductivity”.
l) Addition of new Tables 10, 11, 12 and 13.
m) Modification of sub-clause 8.5 “Sonnenbrand”.
n) Removal of Annex C (normative) “Conditions to be applied to the test procedure specified in EN 1097-2
for testing the Los Angeles coefficient of railway ballast”, Annex D (normative) “Conditions to be applied
to the test procedure specified in EN 1097-2 for testing the Impact value of railway ballast” and Annex E
4
---------------------- Page: 6 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
(normative) “Conditions to be applied to the test procedure specified in EN 1097-1 for determination of
the resistance to wear (micro-Deval) of railway ballast”.
In this document the wording ‘property’ and ‘characteristic’ have the same meaning.
Requirements for assessment and verification of constancy of performance are given in prEN 16236: on
Evaluation of conformity of aggregates.
Requirements for other end uses of aggregates are specified in the following European Standards:
— EN 12620, Aggregates for concrete.
— EN 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other
trafficked areas.
— EN 13055, Lightweight aggregates.
— EN 13139, Aggregates for mortar.
— EN 13242, Aggregates for unbound and hydraulically bound materials for use in civil engineering work
and road construction.
— EN 13383-1, Armourstone — Part 1: Specification.
5
---------------------- Page: 7 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
1 Scope
This European Standard specifies the properties of aggregates obtained by processing natural, manufactured
or recycled crushed unbound aggregates for use in construction of the upper layer of railway track. For the
purposes of this standard, the aggregate is referred to as railway ballast.
A list of the source materials that have been considered and are within the scope of this European Standard is
given in Annex A (normative).
NOTE 1 Reused railway ballast: railway ballast resulting of previously used railway ballast on site and without putting it
on the market is not covered by this European Standard.
Requirements for the Assessment and Verification of the Constancy of Performance (AVCP) of railway balast
to this European Standard are given in prEN 16236.
It incorporates a general requirement that railway ballast shall not release any dangerous substances in
excess of the maximum permitted levels specified in a relevant European Standard for the material or
permitted in the national regulations of the Member State of destination.
Railway ballast used in construction shall conform with all the requirements of this European Standard. The
standard includes comprehensive and specific requirements for natural aggregates and recycled ballast,
dealing with, for example, the stability of certain basalts.
NOTE 2 Guidance on selection of appropriate categories for specific applications can be found in national provisions in
the place of use of the railway ballast.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 932-1:1996, Tests for general properties of aggregates - Part 1: Methods for sampling
EN 932-3, Tests for general properties of aggregates - Part 3: Procedure and terminology for simplified
petrographic description
EN 933-1, Tests for geometrical properties of aggregates - Part 1: Determination of particle size distribution -
Sieving method
EN 933-3, Tests for geometrical properties of aggregates - Part 3: Determination of particle shape - Flakiness
index
EN 933-4, Tests for geometrical properties of aggregates - Part 4: Determination of particle shape - Shape
index
EN 933-5, Tests for geometrical properties of aggregates - Part 5: Determination of percentage of crushed
and broken surfaces in coarse aggregate particles
EN 1097-1, Tests for mechanical and physical properties of aggregates - Part 1: Determination of the
resistance to wear (micro-Deval)
EN 1097-2, Tests for mechanical and physical properties of aggregates - Part 2: Methods for the
determination of resistance to fragmentation
EN 1097-6, Tests for mechanical and physical properties of aggregates - Part 6: Determination of particle
density and water absorption
6
---------------------- Page: 8 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
EN 1367-1:2007, Tests for thermal and weathering properties of aggregates - Part 1: Determination of
resistance to freezing and thawing
EN 1367-2:2009, Tests for thermal and weathering properties of aggregates - Part 2: Magnesium sulfate test
EN 1367-3, Tests for thermal and weathering properties of aggregates - Part 3 : Boiling test for "Sonnenbrand
basalt"”
EN 1367-6, Tests for thermal and weathering properties of aggregates - Part 6: Determination of resistance to
freezing and thawing in the presence of salt (NaCl)
prEN 16236, Evaluation of conformity of aggregates — Initial Type Testing and Factory Production Control
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
aggregate
granular material of natural, manufactured or recycled origin used in construction
3.2
railway ballast
aggregate where 100 % of the surface of the particles can be described as totally crushed used in the
construction of the upper layer of railway track, with sizes e. g. 22/40 mm, 31,5/50 mm or 31,5/63 mm
3.3
natural railway ballast
aggregate for railway ballast from mineral sources which have been subjected to nothing more than
mechanical processing
Note 1 to entry: Natural railway ballast should be produced without blending material from different geological sources.
3.4
manufactured railway ballast
railway ballast of mineral origin resulting from an industrial process involving thermal or other modification
3.5
recycled railway ballast
railway ballast resulting from the processing of inorganic or mineral material previously used in construction
3.6
level
result of the assessment of the performance of an aggregate in relation to its essential characteristics,
expressed as a numerical value
EXAMPLE WA24 = 0,5 %
Declared
3.7
class
range of levels, delimited by a minimum and a maximum value, of performance of an aggregate
EXAMPLE G 85/15
c
7
---------------------- Page: 9 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
3.8
category
level or class of a property of railway ballast expressed as a range of values (class) or a limiting value (level
for individual value of declared category)
Note 1 to entry: There is no relationship between the categories of different properties.
EXAMPLE FI 50, f 25 (Declared Category)
Declared
3.9
declared value
level of a property declared by the manufacturer
EXAMPLE ρ 1,5 (Declared value)
rd Declared
3.10
railway ballast size
designation of railway ballast in terms of lower (d) and upper (D) sieve sizes expressed as d/D
Note 1 to entry: This designation accepts the presence of some particles which are retained on the upper sieve
(oversize) and some which pass the lower sieve (undersize).
3.11
fine particles
particle size fraction of railway ballast which passes the 0,5 mm sieve
3.12
fines
particle size fraction of railway ballast which passes the 0,063 mm sieve
4 General requirements
The tables in this standard include categories which are common across the four main aggregates standard:
EN 12620, EN 13043, EN 13139 and EN 13242. Categories, NOTES, comments etc, which are grey shaded,
are not used for railway ballast.
Where conformity with a category is based on a value of a property being less than or equal to a given value,
conformity with a more severe category (lower value) automatically confers conformity with all less severe
categories (higher values). Similarly for categories based on the value of a property being greater than or
equal to a given value, conformity with a more severe (higher value) automatically confers conformity with all
less severe categories (lower values).
When the value of a property is required but not defined by specified limits the value should be declared as an
XX category, e.g. in Table 4 a value of say 40 for the flakiness index corresponds to FI 40
Declared RBDeclared
(Declared category).
When a property is not required, a “No requirement” category may be used.
5 Geometrical requirements
5.1 General
The necessity for testing and declaring all properties specified in this Clause shall be limited according to the
particular application at end use or origin of the railway ballast. When required, the railway ballast shall be
tested as specified in Clause 5 to determine the relevant geometrical properties.
Sampling shall be carried out in accordance with EN 932-1.
8
---------------------- Page: 10 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
NOTE 1 Advice on sampling from a wagon or the track at the laying site is given in Annex B.
NOTE 2 Guidance on interpretation of results when samples of railway ballast have been taken from railway wagon or
out of track is given in Annex C.
5.2 Railway ballast sizes
All aggregates shall be described in terms of aggregate sizes using the designations d/D, and shall comply
with the grading requirements specified in 5.3.
Railway ballast sizes shall be described by the pair of sieve sizes in millimetres with d as the lower limit
designation sieve and D as the upper limit designation sieve between which most of the particle size
distribution lies.
5.3 Grading
The grading of the railway ballast shall be determined in accordance with EN 933-1 and the results declared in
accordance with the relevant category specified in Table 1.
Table 1 — Categories for grading
Railway ballast Railway
size 31,5 mm to Railway ballast size 31,5 mm to 63 mm ballast size 22
50 mm mm to 40 mm
Sieve size
Percentage passing by mass
mm
Grading category
G
CRB
G A G B G C G D G E
CRB CRB CRB CRB CRB
80 100 100 100 100 -
63 100 95 to 100 95 to 100 93 to 100 -
50 70 to 99 65 to 99 55 to 99 45 to 70 100
40 30 to 65 30 to 65 25 to 75 15 to 40 90 to 100
31,5 1 to 25 1 to 25 1 to 25 0 to 7 60 to 98
22,4 0 to 3 0 to 3 0 to 3 0 to 7 15 to 60
16 - - - - 0 to 15
8 - - - - 0 to 2
31,5 to 50 ≥ 50 - - - -
31,5 to 63 - ≥ 50 ≥ 50 ≥ 85 -
NOTE 1 The requirement for passing the 22,4 mm sieve applies to railway ballast sampled at the place of production.
NOTE 2 In certain circumstances a 25 mm sieve may be used as an alternative to the 22,4 mm sieve, when a
tolerance of 0 to 5 would apply.
NOTE 3 When assessing production within a system of FPC, at least 90 % of gradings, taken on different batches
within a maximum period of 6 months, shall fall within the limits specified in Table 1.
5.4 Content of fine particles
The content of fine particles shall be determined in accordance with EN 933-1 and the results declared in
accordance with the relevant category specified in Table 2.
9
---------------------- Page: 11 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
Table 2 — Categories for fine particles content
Sieve Maximum percentage passing by mass
size
G
FRB
Fine particle category
mm G A G B G G NR
FRB FRB FRBDeclared FRB
0,5 0,6 1,0 > 1,0 No requirement
NOTE The requirement applies to railway ballast sampled at the place of production.
5.5 Fines content
The fines content shall be determined in accordance with EN 933-1 and the results declared in accordance
with the relevant category specified in Table 3.
When required, cleanliness shall be assessed from the fines content. Fines shall be considered non-harmful if
the total fines content is less than the relevant category specified in Table 3 in accordance with the provisions
valid in the place of use of the aggregate.
Table 3 — Categories for fines content
Sieve Maximum percentage passing by mass
size
Fines content category
f
RB
f A f B f C f f NR
mm
RB RB RB RBDeclared RB
0,5 1,0 1,5 > 1,5 No requirement
0,063
NOTE The requirement applies to railway ballast sampled at the place of production.
5.6 Particle shape - Flakiness index and shape index
When required, the shape of railway ballast shall be determined in accordance with EN 933-3 in terms of the
flakiness index and the results declared in accordance with the relevant category specified in Table 4.
The flakiness index shall be the reference test for the determination of the shape.
Table 4 — Categories for maximum values of flakiness index
Flakiness Index Category
FI
RB
≤ 15 FI 15
RB
FI 20
≤ 20
RB
≤ 25 FI 25
RB
FI 4/25
4 to 25
RB
FI
> 25
RBDeclared
No requirement FI NR
RB
When required, the shape index of railway ballast shall be determined in accordance with EN 933-4 and the
results declared in accordance with the relevant category specified in Table 5.
10
---------------------- Page: 12 ----------------------
oSIST prEN 13450:2015
prEN 13450:2015 (E)
Table 5 — Categories for maximum values of shape index
Shape Index Category
SI
RB
≤ 10 SI 10
RB
≤ 20 SI 20
RB
≤ 30 SI 30
RB
SI 5/30
5 to 30
RB
SI
> 30
RBDeclared
No requirement SI NR
RB
5.7 Particle length
Particle length of railway ballast shall be assessed by
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.