Publications

Austroads has produced a series of test methods developed from various technical projects, principally in the bituminous materials area (asphalt, binders, slurry and sprayed seals). The Austroads system of managing the test methods has enabled…

This Specification Framework for Polymer Modified Binders (PMBs) and Multigrade Bitumens has been produced by an Austroads Project Group. The specification is based on a set of test procedures that have been in use throughout Australia for several…

A residential workshop on quality management in Durban, South Africa covered a number of subjects including refinery processes, bitumen and PMB manufacture, overseas trends in bitumen and PMB specifications, test methods, global quality management…

This study investigated the efficacy of Speed Limiting Locally Operating Warning Signs (SLLOWS) at a number of sites in the Perth metropolitan area. It was found that SLLOWS were successful in reducing vehicle speed at all locations (3-4 km/h on…

This project has been funded by Austroads to develop, trial and evaluate a new system for setting speed limits based on harm reduction principles. This first, feasibility stage of the project has consisted of three main tasks: a literature review…

An existing model predicted binder life by combining a binder hardening (increase in viscosity) model and a distress viscosity model. Inputs for the two models were site temperature parameters, binder durability (resistance to hardening) and seal…