Pavement

This webinar, presented by Robert Urquhart on 11 August 2020, gives an overview of an Austroads project which provided expert technical input into the update of four Australian standards which were revised by the Standards Australia Technical Committee CH-025 ‘Bitumen and related products for roadmaking’.

In Australia and New Zealand, bituminous binders and cutters used in road construction are tested prior to use to ensure they will perform satisfactorily during road construction and maintenance. There are a number of Australian standards which describe the test methods used to meet jurisdiction specification requirements, but many of these documents have not been updated for more than 20 years. The use of outdated test methods can make them difficult to adhere to. Some Australian jurisdictions have needed to develop in-house test methods, rather than use national Standards Australia methods, in order to overcome the shortcomings in the outdated methods.

This webinar describes the main changes that have occurred during revision of the following standards:

• AS 2341.3 Determination of kinematic viscosity
• AS 2341.12 Determination of penetration
• AS 2341.18 Determination of softening point
• AS 3568 Oils for reducing the viscosity of bituminous binders for pavements.

The webinar focuses on:

• the process used to update an Australian standard
• the main changes to each of the four standards
• future revision work to be conducted by the CH-025 committee.

The presentation slides can be downloaded from the supporting documents tab after logging in.