Foreword

This document (EN 933‑3:2012) 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of an identical text or by endorsement, at the latest by July 2012, and conflicting national standards shall be withdrawn at the latest by July 2012.

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 supersedes EN 933‑3:1997.

The following changes have been made to the previous edition:

a) the CEN Technical Specification has been adopted as European Standard;
b) the document has been editorially revised.

This standard forms part of a series of tests for geometrical properties of aggregates. Test methods for other properties are covered by the following European Standards:

EN 932 Tests for general properties of aggregates;

EN 1097 Tests for mechanical and physical properties of aggregates;

EN 1367 Tests for thermal and weathering properties of aggregates;

EN 1744 Tests for chemical properties of aggregates;

EN 13179 Tests for filler aggregate used in bituminous mixtures.

EN 933, Tests for geometrical properties of aggregates, consists of the following parts:

— Part 1: Determination of particle size distribution — Sieving method;
— Part 2: Determination of particle size distribution — Test sieves, nominal size of apertures;

Part 3: Determination of particle shape — Flakiness index;
— Part 4: Determination of particle shape — Shape index;
— Part 5: Determination of percentage of crushed and broken surfaces in coarse aggregate particles;
— Part 6: Assessment of surface characteristics — Flow coefficient of aggregates;
— Part 7: Determination of shell content — Percentage of shells for coarse aggregates;
— Part 8: Assessment of fines — Sand equivalent test;
— Part 9: Assessment of fines — Methylene blue test;
— Part 10: Assessment of fines — Grading of filler aggregates (air jet sieving);
— Part 11: Classification test for the constituents of coarse recycled aggregate.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, 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 933-3:2012

Tests for geometrical properties of aggregates - Determination of particle shape. Flakiness index

Current

Published:

29 Feb 2012