Austroads Publications Online
High Modulus High Fatigue Resistance Asphalt (EME2) Technology Transfer: Final Report
Publication no: AP-T323-17 Pages: 55
Published: 11 July 2017
EME2 mixes are produced using a hard paving grade bitumen applied at a high binder content (approximately 6%). Compared to conventional asphalt bases with unmodified binders, EME2 asphalt is characterised by high stiffness, high durability, superior resistance to permanent deformation and good fatigue resistance. International and Australian experience indicates that significant pavement thickness reductions can be achieved using EME2.
The purpose of this project was to assist industry in the successful transfer of French Enrobés à Module Elevé Class 2 (EME2) technology to Australia. EME2 technology offers the prospect of reduced asphalt thicknesses for heavy duty pavements, and lower construction and maintenance costs. TT1908 was a three-year Austroads project, and this report summarises the outcomes of the final year of the study.
As part of the project, an Australian specification framework for EME2 mixes was developed and the requirements for manufacturing, paving and compliance were also provided. Demonstration trials were also carried out as part of the validation process.
The final EME2 mix design specification limits are provided and discussed in this report.
Note: the EME2 report reflects the tonnes of EME2 laid as at December 2016 (8,000 tonnes). Since then road projects in Brisbane, the Gold Coast and Perth have utilised the technology. Now more than 28,000 tonnes of EME2 have been laid in Australia.
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