1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13450:2013Aggregates for railway ballastCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking p
2、ermitted without license from IHS-,-,-BS EN 13450:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13450:2013. Itsupersedes BS EN 13450:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/502, Aggregates.A li
3、st of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLim
4、ited 2013ISBN 978 0 580 77483 6ICS 91.100.15; 93.100Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2013.Amendments issued since publicationDate Text affect
5、edCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13450:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13450 May 2013 ICS 91.100.15; 93.100 Supersedes EN 13450:20
6、02English Version Aggregates for railway ballast Granulats pour ballasts de voies ferres Gesteinskrnungen fr Gleisschotter This European Standard was approved by CEN on 22 December 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givi
7、ng 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 offi
8、cial 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
9、 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,
10、Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nation
11、al Members. Ref. No. EN 13450:2013: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13450:2013EN 13450:2013 (E) 2 Contents page Foreword 3 1 Scope 5 2 Normative references
12、 5 3 Terms and definitions . 6 4 Geometrical requirements 7 5 Physical requirements 10 6 Chemical requirements . 12 7 Durability 13 8 Evaluation of conformity . 15 9 Designation 15 10 Marking and labelling 16 Annex A (informative) Sampling railway ballast at the construction site either from a railw
13、ay wagon or from the track 17 Annex B (informative) Guidance on interpretation of results when samples of railway ballast have been taken from railway wagon or from track . 21 Annex C (normative) Conditions to be applied to the test procedure specified in EN 1367-2 for the determination of the resis
14、tance of railway ballast to the magnesium sulfate test (see 7.2) . 22 Annex D (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 7.3.2) . 24 Annex E (normative) Source materials conside
15、red in the development of EN 13450 and their status in respect of the scope of this standard 25 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive 26 Bibliography 33 Copyright European Committee for Standardization Provided by
16、 IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13450:2013EN 13450:2013 (E) 3 Foreword This document (EN 13450:2013) has been prepared by Technical Committee CEN/TC 154 “Aggregates”, the secretariat of which is held by BSI. This Eur
17、opean 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 2013, and conflicting national standards shall be withdrawn at the latest by February 2015. Attention is drawn to the possibility that some of the
18、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 supersedes EN 13450:2002. The main changes compared to the previous edition are: 1) Updating of the normative references (delet
19、ion of the reference to EN 932-5, updating of the references to EN 1367-1:2007 and EN 1367-2:2009 and addition of the references to EN 1367-6 and EN 16236-2013). 2) Modification of the definition to “recycled railway ballast“. 3) Addition of note 3 in Clause 4. 4) Modification of Tables 1, 2, 3, 4,
20、5, 6, 7, 8 and 9 due to changes in the category names. 5) Addition of new sub-clauses 7.3 “Freeze-thaw resistance“ and 7.4 “Electrical conductivity“. 6) Modification of sub-clause 7.5 “Sonnenbrand“. This document has been prepared under a mandate given to CEN by the European Commission and the Europ
21、ean 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. Requirements for other end uses of aggregates will be specified in the following European Standards: EN 126
22、20, 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 eng
23、ineering work and road construction; EN 13383-1, Armourstone Part 1: Specification. Considering evaluation of conformity see EN 16236, Evaluation of Conformity. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitte
24、d without license from IHS-,-,-BS EN 13450:2013EN 13450:2013 (E) 4 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, E
25、stonia, 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 the United Kingdom. Copyright European C
26、ommittee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13450:2013EN 13450:2013 (E) 5 1 Scope This European Standard specifies the properties of aggregates obtained by processing natural, manufactured
27、 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 give
28、n in Annex E (normative). NOTE 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. It also specifies that a quality control system is in place for use in factory production control
29、 and it provides for the evaluation of conformity of the products to this European Standard. It incorporates a general requirement that railway ballast should not release any dangerous substances in excess of the maximum permitted levels specified in a relevant European Standard for the material or
30、permitted in the national regulations of the member state of destination. Railway ballast used in construction should comply with all the requirements of this European Standard. The standard includes comprehensive and specific requirements for natural aggregates and recycled ballast, dealing with, f
31、or example, the stability of certain basalts. For materials from some other secondary sources, however, work is ongoing and the requirements are incomplete. In the meantime such materials, when placed on the market as railway ballast, should conform fully to this standard but may also be required to
32、 conform to specific relevant additional requirements at the place of use. Additional characteristics and requirements may be specified on a case by case basis depending upon experience of use of the product, and defined in specific contractual documents. Requirements for the declaration of the pote
33、ntial of railway ballast to release regulated dangerous substances are currently under development. Until such time as these are finalised, attention should be paid to requirements at the place of use. 2 Normative references The following documents, in whole or in part, are normatively referenced in
34、 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 samp
35、ling 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 o
36、f 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 1097-1, Tests for mechanical and physical properties of aggregates Part 1: Determination of the resistance to wear (mic
37、ro-Deval) Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13450:2013EN 13450:2013 (E) 6 EN 1097-2, Tests for mechanical and physical properties of aggregates Part 2: Method
38、s 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 EN 1367-1:2007, Tests for thermal and weathering properties of aggregates Part 1: Determination of resistance to
39、 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
40、aggregates Part 6: Determination of resistance to freezing and thawing in the presence of salt (NaCl) EN 16236:2013, 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 definitio
41、ns apply. 3.1 aggregate granular material used in construction Note 1 to entry: Aggregates may be natural, manufactured or recycled. 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 tr
42、ack, 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 diff
43、erent 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 con
44、struction 3.6 category level of a property of railway ballast expressed as a range of values or a limiting value Note 1 to entry: There is no relationship between the categories of different properties. Copyright European Committee for Standardization Provided by IHS under license with CENNot for Re
45、saleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13450:2013EN 13450:2013 (E) 7 3.7 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 particl
46、es which are retained on the upper sieve (oversize) and some which pass the lower sieve (undersize) 3.8 fine particles particle size fraction of railway ballast which passes the 0,5 mm sieve 3.9 fines particle size fraction of railway ballast which passes the 0,063 mm sieve 4 Geometrical requirement
47、s 4.1 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 tests in Clause 4 specified shall be carried out to determine appropriate geometrical
48、 properties. When the value of a property is required but not defined by specified limits the value should be declared as an XXDeclared category, e.g. in Table 4 a value of say 40 for the flakiness index corresponds to FIRB40 (Declared value). NOTE 1 When a property is not required, a “No requiremen
49、t” category can be used. 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. NOTE 3 Where conformity with a category is based on a value of a property being less than or equal to a given value, conf
