AS 1141.16-2007 (R2016)
AS 1141.16-2007 (R2016)
Methods for sampling and testing aggregates Angularity number
Standards Australia
Table of Contents
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Abstract
RECONFIRMATION NOTICE
Technical Committee CE-012 has reviewed the content of this publication and in
accordance with Standards Australia procedures for reconfirmation, it has been
determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the
original date of publication. Users are advised to ensure that they are using the latest
versions of such documents as appropriate, unless advised otherwise in this
Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for
reconfirmation on 29 March 2016.
The following are represented on Technical Committee CE-012:
ARRB Group Ltd - Australian Road Research Board
Australasian (iron & steel) Slag Association
Australasian Procurement and Construction Council
Australian Asphalt Pavement Association
Australian Geomechanics Society
AUSTROADS
Bureau of Steel Manufacturers of Australia
Cement Concrete & Aggregates Australia – Aggregates
Cement Concrete & Aggregates Australia – Cement
Cement Concrete & Aggregates Australia – Concrete
Engineering & Construction Laboratories Association
National Association of Testing Authorities Australia
Rail Industry Safety and Standards Board
The Institute of Quarrying Australia
Scope
This Standard sets out the method for determining the angularity number of an aggregate.
The angularity number is a measure of relative angularity based on the percentage voids in an aggregate after compaction in the prescribed manner. The least angular (most rounded) aggregates have about 33% voids. The angularity number is defined as the amount by which the percentage of voids exceeds 33. The angularity number ranges from 0 to about 12.
Since considerably more compactive effort is used in the angularity test than in the determination of unit mass (see AS 1141.4), the results of the two tests are different. Also, weaker aggregates may be crushed during compaction, and the angularity number test does not apply to any aggregate that breaks down under test.
NOTE: For information on uncertainty of measurement, see Appendix.
General Product Information
| Document Type | Standard |
| Status | Current |
| Publisher | Standards Australia |
| ProductNote | Reconfirmed 15/07/2016. This standard has been reconfirmed in Australia in 2016 and remains current in New Zealand. Reconfirmation Notice 15/07/2016 |
| Committee | CE-012 |
| Under Revision |
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| Supersedes |
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