Date: Thursday, 4 April 2024
Location: Online, 1:00 – 2:00pm AEDT
Organiser: Austroads
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Austroads has completed a project to replace the obsolete gyratory compactors used in design and quality control testing of asphalt mixes and update its Guide to Pavement Technology Part 4B: Asphalt.
Austroads asphalt mix design procedure currently relies on Gyropac compaction for volumetric mix design. The discontinuation of the Gyropac compactor has resulted in a significant gap in the Austroads asphalt mix design procedure and created a need for a replacement.
The Austroads Asphalt Research Technical Group has identified the Superpave™ gyratory compactor as the most likely replacement for this gap.
The project team undertook a comprehensive literature review and testing of asphalt mixes to understand the relationship between compaction in Gyropac, Servopac (setup to AS/NZS) and Superpave™ gyratory compactors to allow the adoption of the Superpave™ standard gyratory settings in the Austroads mix design procedure.
This webinar, presented by Dr Bevan Sullivan and Sean Dorahy, will provide a detailed overview of the project, including the findings of the literature review and test data.
There will be question and answer opportunities during the session.
Dr Bevan Sullivan is Fulton Hogans National Technical Manager with 25 years of pavement engineering experience in consultancy and industry. His pavement engineering expertise includes structural design, materials, asset management and maintenance. Bevan and his teams have undertaken and numerous asphalt research and development the development projects such as EME2, crumb rubber, recycled plastic asphalts, warm mix technologies and bio-bitumen blends. Bevan has worked on major international Research products such as the Superpave Simple Performance Test and the AASHTO pavement design guide. Bevan sits on several Austroads and industry committees.
Sean Dorahy is the Pavement Manager (Asphalt Technology) at Transport for NSW with expertise in the areas of asphalt technology, flexible pavement investigation, design, and construction. Sean first joined TfNSW (the then RTA) in 2011 and has worked in various areas of the organisation including road construction delivery, road maintenance, pavement engineering and materials testing. He received his Bachelor of Civil Engineering (1st Class Honours) from the University of Wollongong and holds a Masters of Pavement Technology from the Centre for Pavement Engineering Education. He is currently an active member of both the Austroads Asphalt Research Technical Group as well as Standards Australia committees responsible for test methods in the areas of both asphalt and bituminous materials.
No charge but registration is essential. Can’t make the live session? Register and we’ll send you a link to the recording.