Enrobes a Module Eleve (EME), which means high modulus asphalt, was developed in France over 30 years ago. It is primarily intended to reduce the thickness of full depth asphalt pavements whilst still providing sound pavement performance through a combination of high modulus, and superior fatigue, deformation and moisture resistance. EME2 is the highest class of EME in the French standards and is being introduced into Queensland through a collaborative effort involving Transport and Main Roads (TMR), ARRB Group, the Australian Asphalt Pavement Association (AAPA) and its members, and Brisbane City Council. In addition, the implementation into Queensland leverages off related projects by Austroads and other Australian road agencies. In regard to mechanistic pavement design, an extensive research program was carried out under a TMR-ARRB NACoE project for the development of structural design procedures for pavements containing EME2. A Technical Note was published, which is intended to facilitate the timely implementation of EME2 on TMR projects. The nationally agreed performance-based mix design procedure for EME2, which is based on Australian test methods and test conditions, was implemented by TMR using a supplementary specification called Project Specific Technical Specification (PSTS) 107, High Modulus Asphalt (EME2). This document provides specification limits for workability, wheel tracking, flexural stiffness, fatigue, and moisture sensitivity. The requirements for manufacturing, paving and compliance are also provided. The execution of a manufacturing and paving trial in February 2014 in Brisbane, followed by other EME2 projects nationwide, provided vital input into the technology transfer. This paper summarises the technical basis of the implementation process, including procedures to characterise the modulus of EME2 at different temperatures and loading conditions, and the development and validation of transfer functions for pavement structures containing EME2. The paper also discusses the performance-based mix design philosophy and its implementation. Laboratory and field data collected to date indicates that EME2 pavement performs as expected.


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    Title :

    EME2 pavement and mix design



    Published in:

    Publication date :

    2016



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    Local classification TIB:    135/7005/1710
    BKL:    55.84 Straßenverkehr



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