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SLOVENSKI STANDARD
01-maj-2023
Nadomešča:
SIST EN 933-6:2014
Preskusi geometričnih lastnosti agregatov - 6. del: Ocenjevanje značilnosti
površine - Količnik sipkosti agregatov
Tests for geometrical properties of aggregates - Part 6: Assessment of surface
characteristics - Flow coefficient of aggregates
Prüfverfahren für geometrische Eigenschaften von Gesteinskörnungen - Teil 6:
Beurteilung der Oberflächeneigenschaften - Fließkoeffizienten von Gesteinskörnungen
Essais pour déterminer les caractéristiques géométriques des granulats - Partie 6 :
Evaluation des caractéristiques de surface - Coefficient d'écoulement des granulats
Ta slovenski standard je istoveten z: EN 933-6:2022
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 933-6
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 91.100.15 Supersedes EN 933-6:2014
English Version
Tests for geometrical properties of aggregates - Part 6:
Assessment of surface characteristics - Flow coefficient of
aggregates
Essais pour déterminer les caractéristiques Prüfverfahren für geometrische Eigenschaften von
géométriques des granulats - Partie 6 : Evaluation des Gesteinskörnungen - Teil 6: Beurteilung der
caractéristiques de surface - Coefficient d'écoulement Oberflächeneigenschaften - Fließkoeffizienten von
des granulats Gesteinskörnungen
This European Standard was approved by CEN on 7 November 2022.
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. 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 933-6:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 7
5 Reference materials . 7
6 Apparatus . 8
6.1 General. 8
6.2 Apparatus for general purposes . 8
6.3 Additional apparatus required for the determination of the flow coefficient of coarse
aggregate . 8
6.4 Additional apparatus required for the determination of the flow coefficient of fine
aggregate . 10
7 Determination of the flow coefficient of coarse aggregate . 12
7.1 General. 12
7.2 Preparation of test portions . 12
7.2.1 Reference coarse aggregate . 12
7.2.2 Test portions . 13
7.3 Procedure . 13
7.3.1 Common test procedure . 13
7.3.2 Reference test . 14
7.3.3 Material sample test . 14
7.4 Calculation and expression of results . 15
7.5 Test report . 15
7.5.1 Required data . 15
7.5.2 Optional data . 15
8 Determination of the flow coefficient of fine aggregate . 16
8.1 General. 16
8.2 Preparation of test portions . 16
8.2.1 Reference fine aggregate . 16
8.2.2 Test portions . 16
8.3 Procedure . 17
8.3.1 Common test procedure . 17
8.3.2 Reference test . 17
8.3.3 Material sample test . 17
8.4 Calculation and expression of results . 17
8.5 Test report . 18
8.5.1 Required data . 18
8.5.2 Optional data . 18
Annex A (informative) Example of test data sheet – coarse aggregate . 19
Annex B (informative) Precision . 21
B.1 Coarse aggregate . 21
B.2 Fine aggregate . 21
Annex C (informative) Example of test data sheet – fine aggregate . 22
Bibliography . 24
European foreword
This document (EN 933-6:2022) has been prepared by the 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 June 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 933-6:2014.
In comparison with the previous edition EN 933-6:2014, the following technical modifications have
been made:
a) amendment to the Scope, clarifying that the standard does not apply to lightweight aggregates;
b) amendment to the Scope according to the current rules, introducing the three annexes and adding
a warning about potential hazardous materials, operations and equipment;
c) change of the dated normative references to Annex A of EN 1097-6:2013 to undated references. The
references are given for the calculations of masses in 7.2.2, 7.3.1 and 8.2.2. As a consequence, new
notes to 7.2.2 and 8.2.2 have been added, informing that the test method generally applies to
aggregates with water absorption less than about 1,5 %;
d) rewording of Clause 5 Reference materials, using the same text structure as in EN 1097-8. The
information about alternative sources of reference materials has been moved to a new Note;
e) amendment to 6.4.1, including Figure 3, to clarify the verification of aperture dimension;
f) updating of the test reports in 7.5 and 8.5 according to the current rules;
g) amendment to the expressions of numerical results in 8.3, 8.4 and Annex C, for a better precision of
the final result.
This document forms part of a series of tests for geometrical properties of aggregates. Test methods for
other properties of aggregates are covered by the following European standards:
— EN 932 (all parts), Tests for general properties of aggregates
— EN 1097 (all parts), Tests for mechanical and physical properties of aggregates
— EN 1367 (all parts), Tests for thermal and weathering properties of aggregates
— EN 1744 (all parts), Tests for chemical properties of aggregates
— EN 13179 (all parts), Tests for filler aggregate used in bituminous mixtures
The other parts of EN 933 include:
— 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 particles in coarse and all-in natural aggregates
— Part 7: Determination of shell content — Percentage of shells in 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
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
1 Scope
This document specifies the reference method used for type testing, and in case of dispute, for
determining the flow coefficient of coarse and fine aggregates. Other methods can be used for other
purposes, such as factory production control, provided that an appropriate working relationship with
the reference method has been established. Examples of advanced test methods can be found in the
Bibliography.
This document applies to coarse aggregate of sizes between 4 mm and 20 mm and to fine aggregate of
size up to 2 mm. It does not apply to lightweight aggregates.
NOTE
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