Wednesday, 16 August 2023
Austroads has released a technical report that lays out the first steps of what will become a new performance-based asphalt specification framework. The report, which is free to download on the Austroads website, is a significant step forward in standardising asphalt performance testing methodologies across Australia and New Zealand.
The asphalt industry is rapidly evolving, and it is widely accepted that prescriptive specifications are not necessarily well suited to take full advantage of the benefits that new and innovative technologies can provide. A national performance-based asphalt specification would allow asset owners and asphalt suppliers to take full advantage of the enhanced performance characteristics of current and emerging asphalt technologies.
“The new report marks a significant milestone for the road industry in Australia and New Zealand,” said Austroads Transport Infrastructure Program Manager, Ross Guppy. “We believe the report will encourage positive change in the way asphalt is tested and pave the way for more consistent, high-quality road infrastructure in Australia and New Zealand.”
The report contains information that will help practitioners introduce innovative materials and technologies, make use of locally-sourced recycled materials, gain a better understanding of the performance risks associated with different asphalt mixes, and link asphalt mix designs with pavement designs.
“The report will aid practitioners wanting to use better performing asphalt with less of a negative impact on the environment,” said Ross. “A nationally accepted specification framework will encourage innovation in the industry.”
Download National Harmonisation of Test Methods used in Asphalt Performance Specifications
The project has also updated three test methods:
Verification Procedures for a Wheel Tracking Test Device
Deformation Resistance of Asphalt Mixtures by the Wheel Tracking Test
Characterisation of Flexural Stiffness and Fatigue Performance of Bituminous Mixes
Join us for a webinar on Monday 21 August 2023, 1pm AEST with Jason Jones and Joe Grobler to learn more about the findings of this project.
No charge but registration is essential.
Can’t make the live session? Register and we’ll send you a link to the recording.