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Towards Incorporating Heavy Vehicles into Sprayed Seal Design: Stage 2

Traffic loadings on Australia’s extensive sprayed seal network have increased, particularly with freight efficiency resulting in longer and heavier loads being transported by prime movers.

This report details the development of a model to describe…

Maximising the Re-use of Reclaimed Asphalt Pavement - Outcomes of Year Two: RAP Mix Design

This report presents the findings from the second year of a three-year Austroads study which aims to maximise the re-use of reclaimed asphalt pavement (RAP) in new asphalt mixes.

A survey was conducted in Australia to identify the important issues…

High Modulus High Fatigue Resistance Asphalt (EME2) Technology Transfer

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…

Design and Performance of Foamed Bitumen Stabilised Pavements: Progress Report 2

There is a need to improve the Austroads procedures for the mix and structural designs of foamed bitumen stabilised materials.

This progress report summarises the mix design test methods drafted to date and those planned for 2014-15 within the…

Double/Double Primerseal Inspections

This report describes inspections conducted on double/double primerseals constructed in Victoria.

It is not typical practice to use two-layer primerseals, or polymer modification in primerseals, and methods to do so are not described by Austroads…

Inspections of Sprayed Seal Trials

This report details the findings from visual inspections conducted on two Austroads sprayed seal field trials: a non-modified binders trial near Gisborne, Victoria; and a polymer modified binder (PMB) trial near Coober Pedy, South Australia and…

Initial Field Trials with Surface Wear Rig

A mobile pavement surface wear rig has been constructed, which aims to gain an improved understanding of the failure mechanisms that are particular to the pavement surfacing layer – as distinct from the structural layers – that may be caused by…

Good Practice in Reseal Programming

This report provides asset managers with practical guidance in the development and delivery of effective resealing programs. It builds on accumulated experience of previous studies and a review of sprayed seal performance throughout Australasia.

Effects of Hot Storage on Polymer Modified Binder Properties and Field Performance

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…

Cemented Materials Characterisation: Final Report
This report brings together five years of research into the modulus, strength fatigue characteristics of cement treated granular materials as used in road pavements. Laboratory procedures used to prepare, cure and test materials for flexural modulus,…