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…
Polymer modified binders (PMBs) are increasingly used in road construction as they provide enhanced performance properties compared with conventional bitumen. Even though PMBs show enhanced service properties, they may show degradation or changes in…
This report presents the results of a laboratory 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.
Among the number of test methods reviewed and…
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…
The temperature sensitivity (K factor) of the ball penetration test is an important parameter in estimating the embedment allowance of the overlaying seal design. A series of ball penetration tests were performed in the laboratory to investigate the…
An Austroads national workshop on stone mastic asphalt (SMA) was held to resolve differences in requirements for SMA in different parts of Australasia. Delegates decided that two mix types were required to cover the desired range of properties.…
This report reviewed various approaches to produce warm mix asphalt (WMA) and their laboratory and field assessments. Reviewed technologies are the foamed mix based products (Aspha-Min, WAM-Foam and LEA), organic additive products (Sasobit,…
