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Development of a Binder Test to Rank the Low Temperature Cracking Resistance of Polymer Modified Binders

The current Australian polymer modified binder (PMB) specification includes low temperature stiffness tests but does not include a binder test which ranks the resistance of PMBs to low temperature cracking on the road. This study investigated…

Development of a Durability Test Method for Sprayed Sealing Binders: A Field Validation Study

This report presents the results of a field validation study that was conducted as part of the development of a new long-term ageing (durability) test for bituminous binders used in sprayed seals in Australia.

The field validation study of the new…

Improved Design Procedures for Asphalt Pavements: Outcomes for Year 2 of 3

The report covers a variety of topics related to improving the design procedures for asphalt pavements in Australia. Literature reviews of perpetual pavement design concepts and the relationship between flexural and compressive modulus were…

Austroads LTPP/LTPPM Study - Summary Report 2013-14

This report summarises the activities undertaken during the 2013–14 year for the long term pavement performance (LTPP) monitoring project.

Austroads project AT1064 Long-Term Performance Monitoring to Develop Consistent Performance Models has…

Effect of Moisture Content and Laboratory Preparation Conditions on the Permanent Deformation of Unbound Granular Materials

This report documents research to validate the wheel-tracking approach as a complementary means of evaluating the rutting performance of granular bases. Firstly, the influence of the moisture content on the laboratory wheel-tracking performances is…

Analytical Study of Performance Models for Unbound Granular Pavements

This report presents an analytical and parametric study to assess the relevance of rutting performance models for unbound granular pavements.

The rutting performance relationship used in the Austroads Guide to Pavement Technology Part 2 – Pavement…

PMB Sprayed Seal Trials: 12 Month Summary Report

This report details of the performance of polymer modified binder (PMB) trial sites in South Australia and New South Wales after 12 months service life. It includes related information such as the seal designs, binder testing in the laboratory, site…

Effects of Polymer Segregation in Polymer Modified Binders on Field Performance

This study investigated whether the segregation propensity of a polymer modified binder (PMB) during hot storage affects its performance on the road.

The Australian PMB specification currently includes a segregation test which determines whether the…

Development of a Stone Mastic Asphalt Mix Design Procedure: Selection of Appropriate Compaction Equipment for the Mix Design

This report examines the selection of an appropriate laboratory compaction device for stone mastic asphalt (SMA). The laboratory compaction of the SMA mix is crucial as the volumetric properties are selected based on the results from laboratory…

Improved Design Procedures for Asphalt Pavements: Pavement Temperature and Load Frequency Estimation

This report documents a study designed to predict temperature and load frequency in asphalt pavements and their effect on the modulus of the asphalt material. It is the first report from a three-year Austroads project which aims to improve the…