Improved Design Procedures for Asphalt Pavements

This report is the final deliverable of a three year Austroads project to improve the design procedures for asphalt pavements. The object of the work in this final year was to validate the proposed improved procedures for the characterisation of asphalt modulus and asphalt mix fatigue performance. Based on the work, a revised text for Austroads Guide to Pavement Technology Part 2 has been prepared. Changes include the introduction of flexural modulus master curves for the characterisation of the resilient response of asphalt in pavement design. Field and laboratory experiments were conducted to validate recommended changes. The findings support the proposed changes to the design procedures in the Guide.