Publications

This report details the first year of a three-year Austroads project to transfer French Enrobés à Module Élevé Class 2 (EME2) technology to Australia. EME2 technology offers the prospect of reduced asphalt thicknesses for heavy duty pavements, and…

The Guide to Pavement Technology Part 4B: Asphalt provides an introduction to the nature of asphalt as a material and its application in road pavements.

This report documents an asphalt deformation trial established over a 1200 m length of Dandenong Road in Melbourne. The trial aimed to validate the wheel tracking used in the Austroads mix design method. The trial involved the placement of seven…

This report gives information on the development of a procedure to fractionate bitumen using an Iatroscan liquid chromatography system, and also presents test results on a range of Australian bitumens. An introduction discusses the topic of bitumen…

The suitability of the CoreLok device was assessed for estimating the bulk density of compacted asphalt specimens. The device encloses a sample in a plastic bag which is subjected to vacuum and sealed. Results were compared to saturated surface dry…

The report documents the procedures used to commission a Cooper wheel tracking apparatus. Practical issues are discussed with emphasis on achieving a repeatable outcome. This involved checking the accuracy of the loading system and the deformation…

A pilot study examined the feasibility of using laboratory produced mix compaction curves to indicate the relative workability (ease of compaction) of asphalt mixes in the field. Five mixes of different expected workabilities were used. A roller…

An Austroads national workshop on asphalt was held to assist development of a research program and identify supplier and user risks which affect quality and performance. Delegates identified key issues under the themes of: mix design and…

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 Pavement Work Tip is a practical guide to the rate of cooling of asphalt as an aid to effective compaction while the asphalt remains in a workable state.