A recent Austroads research project has examined opportunities to improve the design guidelines for thin asphalt–surfaced unbound granular pavements, with a focus on their susceptibility to asphalt fatigue distress.

This webinar will present the key outcomes of the project, including insights drawn from the analysis of road network data to assess the relative performance of thin asphalt surfacing treatments. It will also discuss the methodology and findings of a shift factor calibration approach developed, highlighting its implications for pavement design and the prediction of thin asphalt surfacing performance.

In addition, the session will introduce a practical framework for establishing project-level curvature limits to mitigate the risk of premature fatigue cracking.

Overall, the project findings provide improved guidance for material selection, design, and construction of thin asphalt-surfaced granular pavements.
This webinar will be of particular interest to pavement engineers, asset managers, designers, and professionals involved in planning and delivering road rehabilitation programs.

Details About the Webinar

WEBINAR ENDED

About the Speakers

1756266292-0fb9424312e5c2ae Didier Bodin

Dr Didier Bodin is a Principal Pavement Engineer at the National Transport Research Organisation (NTRO). Since he joined the pavement team in October 2010, his research has focused on a range of projects dealing with performance characterisation and modelling of unbound and recycled granular materials, foamed bitumen stabilised and asphalt pavements. His research involved laboratory performance characterisation, accelerated pavement testing and theoretical modelling for a better understanding of pavement distress mechanism and developed pavement design approaches. Didier has been engaged with Austroads and has delivered major Austroads projects focused on the characterisation of pavement material, assessment of pavement performance under accelerated pavement testing, pavement response to load and performance modelling for more than 10 years. Didier is a member of the Austroads Pavement Structures Technical Group (PSTG) and a former member of the Austroads Pavement Task Force (PTF).

1756266405-4ede447e1aa46518 Dr Geoff Jameson

Dr Geoff Jameson is a graduate from the University of Melbourne with a Bachelor of Science (Hons) degree and a Doctor of Engineering from Monash University. Prior to joining the now National Transport Research Organisation (NTRO), he worked for VicRoads on various aspects of road construction materials, including seven years as the manager of the Pavement Design Section, which was responsible for standards of pavement design and rehabilitation. In 1994 he joined the Pavement Technology area at ARRB. He has worked on a variety of projects addressing issues associated with pavement design and performance, specifications and materials characterisation, including Accelerated Loading Facility (ALF) trials of unbound granular materials, asphalt, cemented materials, recycled materials and rigid pavements. In 2011–12 he was appointed as the inaugural Director of the Western Australian Pavement Asset Research Centre. He is a member of the Austroads Pavements Structures Technical Group and has been a key contributor/editor of many parts of the Austroads Guide to Pavement Technology.

M Mike Pickering

Mike Pickering is currently working in the role of Director (Pavements, Research and Innovation) in the Queensland Department of Transport and Main Roads and is the department’s representative on the Austroads Pavements Task Force. Mike is also the Austroads Project Manager for the APT6158 Improving the Cost Effectiveness of Asphalt Surfaced Gravel Roads project and is representing Austroads in this webinar.

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