AS 1141.21-1997 (R2016)

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Abstract

Specifies the method for determining the aggregate crushing value by tamping a measured mass of sieved material (14 mm nominal size) in a standard cylinder, crushing with a plunger and determining the mass passing a 2.36 mm sieve. Material of other nominal sizes may be used but the result may not be comparable.
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 crushing value of coarse aggregate. The test is performed on dry material and is carried out in duplicate. The standard aggregate size for testing is -13.2 mm, +9.50 mm. Provision is made for testing other size fractions (see Clause 8).
NOTE: The results obtained for other size fractions may not be the same as for the standard fraction.

General Product Information

Published
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
Pages
ISBN
Committee	CE-012
Supersedes	AS 1141-1974 DR 96481