EN 12620-2013 5625 Aggregates for concrete《混凝土集料》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationAggregates for concreteBS EN 12620:2013Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitte

2、d without license from IHS-,-,-National forewordThis British Standard is the UK implementation of EN 12620:2013. It supersedes BS EN 12620:2002 which is withdrawn.The UK participation in its preparation was entrusted to Technical CommitteeB/502, Aggregates.A list of organizations represented on this

3、 committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013 ISBN 978 0 580 69714 2 ICS

4、91.100.15; 91.100.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2013.Amendments issued since publicationDate Text affectedBRITISH STANDARDBS EN 12620

5、:2013Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12620 May 2013 ICS 91.100.15 Supersedes EN 12620:2002+A1:2008English Ver

6、sion Aggregates for concrete Granulats pour bton Gesteinskrnungen fr Beton This European Standard was approved by CEN on 24 August 2011. 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

7、 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

8、 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, Czec

9、h 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. EU

10、ROPEAN 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 national Members. Ref. No. EN 12620:2013: EBS EN 12620:2

11、013Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 12620:2013 (E) 2 Contents Page Foreword . 4 1 Scope 5 2 Normative references . 5 3 Terms and definitions . 7 4 Geometrical r

12、equirements 9 4.1 General . 9 4.2 Aggregate sizes . 9 4.3 Grading 10 4.3.1 General . 10 4.3.2 Coarse aggregates 11 4.3.3 Fine aggregates . 12 4.3.4 All-in aggregates . 12 4.3.5 Special use aggregates and declared grading categories . 13 4.3.6 Grading of added filler 13 4.3.7 Natural graded 0/8 mm ag

13、gregates . 13 4.4 Fines content . 14 4.5 Fines quality 15 4.6 Particle shape of coarse and all-in aggregates . 17 4.6.1 Flakiness index and shape index 17 4.6.2 Percentage of crushed or broken particles 19 4.6.3 Angularity of fine aggregates 19 4.7 Shell content of coarse and all-in aggregates . 20

14、5 Physical requirements 20 5.1 General . 20 5.2 Resistance to fragmentation 21 5.3 Resistance to wear 22 5.4 Particle density and water absorption 22 5.4.1 Particle density 22 5.4.2 Water absorption . 23 5.5 Bulk density . 23 5.6 Resistance to polishing for application in surface courses . 23 5.7 Re

15、sistance to surface abrasion . 23 5.8 Resistance to abrasion from studded tyres for application in surface courses 23 6 Chemical requirements 24 6.1 General . 24 6.2 Petrographic description 24 6.3 Classification of the constituents of coarse recycled aggregates 24 6.4 Sulfur containing compounds .

16、27 6.4.1 Acid-soluble sulfate 27 6.4.2 Total sulfur . 27 6.4.3 Water soluble sulfate content of recycled aggregates . 28 6.5 Chlorides 28 6.6 Carbonate content for concrete pavement surface courses of fine, and all-in aggregates . 28 6.7 Other constituents 29 6.7.1 Constituents which alter the rate

17、of setting and hardening of concrete 29 6.7.2 Constituents which affect the volume stability of air-cooled blast furnace slag . 30 7 Durability 30 BS EN 12620:2013Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permit

18、ted without license from IHS-,-,-EN 12620:2013 (E) 3 7.1 General . 30 7.2 Magnesium sulfate soundness of coarse aggregates 30 7.3 Freeze thaw resistance 31 7.3.1 Water absorption as a screening test for freeze-thaw resistance . 31 7.3.2 Resistance to freezing and thawing 32 7.3.3 Resistance to freez

19、ing and thawing in the presence of salt (extreme conditions) 32 7.4 Volume stability - drying shrinkage 33 7.5 Alkali-silica reactivity 33 8 Evaluation of conformity 33 9 Designation 33 9.1 Designation and description 33 9.2 Additional information for the description of an aggregate . 34 10 Marking

20、and labelling . 34 Annex A (normative) Source materials considered in the development of EN 12620 and their status in respect of the scope of the standard . 35 Annex B (informative) Guidance on the description of coarseness/fineness of fine aggregates 38 Annex C (informative) Guidance on the effects

21、 of some chemical constituents of aggregates on the durability of concrete in which they are incorporated 39 C.1 Chlorides 39 C.1.1 Chlorides in natural aggregates 39 C.1.2 Chlorides in recycled aggregates . 39 C.2 Sulfates 39 C.3 Alkali-silica reaction . 40 C.3.1 Alkali-silica reaction with natural

22、 aggregates 40 C.3.2 Alkali-silica reaction with recycled aggregates (including manufactured glass) 40 C.4 Constituents affecting the surface finish of concrete . 40 C.5 Constituents affecting the setting and hardening of concrete 41 C.6 Constituents of air-cooled blastfurnace slag . 41 Annex ZA (in

23、formative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive 42 ZA.1 Scope and relevant characteristics . 42 ZA.2 Procedures for attestation of conformity of aggregates and fillers 45 ZA.2.1 System(s) of attestation of conformity . 45 ZA.2.2 EC Cer

24、tificate Declaration of conformity 47 ZA.3 CE marking and labelling . 49 Bibliography . 56 BS EN 12620:2013Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 12620:2013 (E) 4 For

25、eword This document (EN 12620:2013) has been prepared by Technical Committee CEN/TC 154 “Aggregates”, the secretariat of which is held by BSI. 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 Novem

26、ber 2013, and conflicting national standards shall be withdrawn at the latest by February 2015. 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 paten

27、t rights. This document supersedes EN 12620:2002+A1:2008. Requirements for other end uses of aggregates are specified in the following European Standards: EN 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked areas; EN 13055, Lightweight aggreg

28、ates; 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; EN 13450, Aggregates for railway ballast. Requirements for evaluation of conformity are sp

29、ecified in EN 16236. 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, Former Yugoslav Republic of M

30、acedonia, 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. BS EN 12620:2013Copyright European Committee for Standardization P

31、rovided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 12620:2013 (E) 5 1 Scope This European Standard specifies the properties of aggregates and filler aggregates obtained by processing natural, manufactured or recycled materials a

32、nd mixtures of these aggregates for use in concrete in conformity with EN 206-1 and concrete used in roads and other pavements and for use in precast concrete products. It covers aggregates having an oven dried particle density greater than 2,0 Mg/m3(2000 Kg/m3). It also covers recycled aggregate wi

33、th particle densities greater than 1,50 Mg/m3(1 500 kg/m3) with appropriate caveats and recycled fine aggregate with appropriate caveats. A list of the source materials that have been considered and indicating those which are within the scope of this standard is given in Annex A (normative). Require

34、ments for the evaluation of conformity of the products to this European Standard are given in EN 16236. It incorporates a general requirement that aggregates shall not release any dangerous substances in excess of the maximum permitted levels specified in a relevant European Standard for the materia

35、l or permitted in the national regulations of the member state of destination. The tables in this standard include categories which are common across the four main aggregate standards: EN 12620, EN 13043, EN 13139 and EN 13242. Not all of these categories are appropriate for aggregates for use in co

36、ncrete. Categories, notes, comments etc, which are grey shaded, should not be used in concrete. Aggregates used in construction should comply with all the requirements of the relevant European Standards. These standards include comprehensive and specific requirements for natural aggregates, iron and

37、 steel making slag and recycled aggregates, dealing with, for example, the stability of certain basalts, the expansion of certain slags and the constitution of recycled aggregates. For materials from some other secondary sources however, work is ongoing and the requirements are incomplete. In the me

38、antime, such materials, when placed on the market as aggregates, should conform fully to this standard but may also be required to 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

39、upon experience of use of the product, and defined in specific contractual documents. NOTE Requirements for lightweight aggregates are specified in prEN 13055. Requirements for the declaration of the potential of aggregates to release regulated dangerous substances are currently under development. U

40、ntil 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 this document and are indispensable for its application. For dated references, only the edition cite

41、d applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-2, Methods of testing cement Part 2: Chemical analysis of cement EN 932-3, Tests for general properties of aggregates Part 3: Procedure and terminology for simplified petrograp

42、hic description BS EN 12620:2013Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 12620:2013 (E) 6 EN 933-1, Tests for geometrical properties of aggregates Part 1: Determination

43、 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 933-7, Tests for geometrical

44、properties of aggregates Part 7: Determination of shell content Percentage of shells in coarse aggregates EN 933-8, Tests for geometrical properties of aggregates Part 8: Assessment of fines Sand equivalent test EN 933-9, Tests for geometrical properties of aggregates Part 9: Assessment of fines Met

45、hylene blue test EN 933-10, Tests for geometrical properties of aggregates Part 10: Assessment of fines Grading of filler aggregates (air jet sieving) EN 933-11, Tests for geometrical properties of aggregates Part 11: Classification test for the constituents of coarse recycled aggregate EN 1097-1, T

46、ests 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 1097-3, Tests for mechanical and physi

47、cal properties of aggregates Part 3: Determination of loose bulk density and voids EN 1097-6, Tests for mechanical and physical properties of aggregates Part 6: Determination of particle density and water absorption EN 1097-8, Tests for mechanical and physical properties of aggregates Part 8: Determ

48、ination of the polished stone value EN 1097-9, Tests for mechanical and physical properties of aggregates Part 9: Determination of the resistance to wear by abrasion from studded tyres Nordic test EN 1367-1, Tests for thermal and weathering properties of aggregates Part 1: Determination of resistanc

49、e to freezing and thawing EN 1367-2, Tests for thermal and weathering properties of aggregates Part 2: Magnesium sulfate test EN 1367-4, Tests for thermal and weathering properties of aggregates Part 4: Determination of drying shrinkage EN 1367-6, Tests for thermal and weathering properties of aggreg