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New report on foamed bitumen stabilised pavements

Austroads has released its latest progress report on its research project: TT1825 Mix Design and Field Evaluation of Foamed Bitumen Stabilised Pavements, conducted by ARRB.

Austroads has released its latest progress report on its research project: TT1825 Mix Design and Field Evaluation of Foamed Bitumen Stabilised Pavements, conducted by ARRB.Austroads has released its latest progress report on its research project: TT1825 Mix Design and Field Evaluation of Foamed Bitumen Stabilised Pavements, conducted by ARRB.

Austroads comiissioned ARRB to conduct the research project in July 2012. According to the Austroads website, the objectives of the project are to improve the Austroads procedures for the structural design of foamed bitumen stabilised materials for new pavements and structural rehabilitation treatments. Additionally, the project aims to identify distress modes of bitumen stabilised pavements from trial sites and improve and harmonise national mix design procesdures.

This latest progress report, Design and Performance of Foamed Bitumen Stabilised Pavements: Progress Report 3, was released in late November and summarises the test methods drafted and currently being reviewed within the context of an Austroads mix design process.

The report details the construction and early-life monitoring of performance of trial sections of pavement on the Western Highway in Ballan, Victoria. It also includes 18-month performance data for foamed bitumen stabilised sections for the Newell Highway in Bellata, New South Wales and the two-year performance data for the trial section on Calder Freeway in Woodend, Victoria.

In addition, the fatigue cracking of Port Wakefield Road in Virginia, South Australia, which was open to traffic for two years, is included.

The report also includes the latest performance data from Kewdale Road and Kwinana Freeway sites in Perth.

The report summarises the project findings to date and identifies the proposed tasks for the remaining 18 months of the project.

The report can be found on the Austroads website.

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