090629173312Preview - SS EN 12620-2008+Amd1

NOT FOR SALE OUTSIDE SINGAPORE

SINGAPORE STANDARD

SS EN 12620 : 2008 (ICS 91.100.15; 91.100.30)

SPECIFICATION FOR

Aggregates for concrete (Incorporating Amendment No. 1, May 2009)

Published by SPRING Singapore 2 Bukit Merah Central Singapore 159835 SPRING Singapore Website: www.spring.gov.sg Standards Website: www.standards.org.sg

NOT FOR SALE OUTSIDE SINGAPORE

SINGAPORE STANDARD

SS EN 12620 : 2008 (ICS 91.100.15; 91.100.30)

SPECIFICATION FOR

Aggregates for concrete (Incorporating Amendment No. 1, May 2009)

All rights reserved. Unless otherwise specified, no part of this Singapore Standard may be reproduced or utilised in any form or by any means, electronic or mechanical, including photocopying and microfilming, without permission in writing from SPRING Singapore at the address below: Head Standardisation Department SPRING Singapore 2 Bukit Merah Central Singapore 159835 Telephone: 62786666 Telefax: 62786667 Email: [email protected]

ISBN 981-4154-61-X

SS EN 12620 : 2008

Contents Page National Foreword

7

CLAUSES 1 2 3 4 5 6 7 8 9

Scope Normative references Terms and definitions Geometrical requirements Physical requirements Chemical requirements Evaluation of conformity Designation Marking and labelling

8 8 10 11 17 23 25 26 26

ANNEXES A B C D E F G H ZA ZZA

(informative) Illustration of grading requirements for most commonly used sizes for graded coarse aggregates (informative) Guidance on the description of coarseness/fineness of fine aggregates (normative) Reduced grading tolerances on producer’s declared typical grading for fine aggregates (normative) Assessment of fines (informative) Guidance on the use of aggregates in concrete (informative) Notes for guidance on the freezing and thawing resistance of aggregates (informative) Guidance on the effects of some chemical constituents of aggregates on the durability of concrete in which they are incorporated (normative) Factory production control (informative) Clauses of EN 12620 addressing essential requirements or other provisions of EU Directives (normative) Testing scheme for aggregates imported from sources / quarries without a system of product quality control

27 29 30 31 32 33 35 38 45 56

TABLES 1 2 3 4 5 6 7

Sieve sizes for specifying aggregate sizes General grading requirements Overall limits and tolerances for coarse aggregate grading at mid-size sieves Tolerances on producer’s declared typical grading for general use fine aggregates Tolerances on producer’s declared typical grading for natural graded 0/8 mm aggregate Grading requirements for all-in aggregates Grading requirements for filler aggregate

5

12 13 13 14 15 15 16

SS EN 12620 : 2008 Page

A1>

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 A.1 A.2 B.1 B.2 C.1 F.1 H.1 H.2 H.3 ZA.1 ZA.2 ZA.3

Categories for maximum values of flakiness index Categories for maximum values of shape index Category for maximum values of shell content of coarse aggregates Categories for maximum values of fines content Categories for maximum values of Los Angeles coefficients Categories for maximum values of resistance to impact Categories for maximum values of resistance to wear Categories for minimum values of resistance to polishing Categories for maximum values of resistance to surface abrasion Categories for maximum values of resistance to abrasion from studded tyres Categories for maximum values of freeze-thaw resistance Categories for maximum magnesium sulfate soundness Categories for constituents of coarse recycled aggregates Categories for maximum values of acid-soluble sulfate content Categories for maximum values of water-soluble sulfate content or recycled aggregates Categories for influence of water-soluble materials from recycled aggregates on the initial setting time of cement paste Overall limits and tolerances for coarse aggregate grading at mid-size sieves for basic set plus set 1 coarse aggregate product sizes (in millimetres) Overall limits and tolerances for coarse aggregate grading at mid-size sieves for basic set plus set 2 coarse aggregate product sizes (in millimetres) Coarseness or fineness based on the percentage passing the 0.500 mm sieve Coarseness or fineness based on the fineness modulus Reduced tolerances on producer’s declared typical grading for fine aggregates Freeze-thaw severity category related to climate and end use Minimum test frequencies for general properties Minimum test frequencies for properties specific to end use Minimum test frequencies for properties appropriate to aggregates from particular sources Scope and relevant requirement clauses System(s) of attestation of conformity for aggregates and fillers Assignation of evaluation of conformity tasks

16 16 17 17 18 18 19 19 19 20 20 21 22 23 24 25 27 28 29 29 30 34 42 43 44 45 48 49

Testing scheme for aggregates imported from sources / quarries without a system of product quality control (to be undertaken by importers of aggregates) ZZA.1 Minimum test frequencies for general properties ZZA.2 Minimum test frequencies for properties specific to end use ZZA.3 Minimum test frequencies for properties appropriate to aggregates from particular sources / quarries

56 58 59

FIGURES ZA

52

Example of CE marking information

Bibliography

60

6

It also covers recycled aggregate with densities between 1.50 Mg/m3 (1500 kg/m3) and 2.00 Mg/m3 (2000 kg/m3) with appropriate caveats and recycled fine aggregate (4 mm) with appropriate caveats.

BS EN 13055-1:2002



EN 196-2, Methods of testing cement – Part 2 : Chemical analysis of cement.