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Webinar: Outcomes from the Long-Term Monitoring of Austroads Sprayed Seal Trials
Flexible granular pavements protected by sprayed seal surfacings are the backbone of the Australian and New Zealand road networks. Road agencies in Australia and New Zealand have therefore been focused on producing quality, long-lasting sprayed seal…
Inspections of Polymer Modified Binder Trial Sites and Ageing Properties of Binders
This report presents the findings of site inspections and binder ageing performance studies associated with two Austroads sprayed seal trial sites constructed near Coober Pedy, South Australia and Cooma, New South Wales. These trials were…
Stripping of Aggregate from Sprayed Seals
This method sets out the procedure for determining the degree of stripping of a single coat sprayed seal with a nominal aggregate size of 10 mm or larger.
Webinar: Integrating Safe System with Movement and Place with for Vulnerable Road Users
This webinar, presented by Dr Bruce Corben on 26 March 2020, demonstrates ways to integrate Safe System design and operation with Movement and Place for vulnerable road users, in particular pedestrians and cyclists. The Movement and Place Framework…
Integrating Safe System with Movement and Place for Vulnerable Road Users
The Movement and Place Framework is increasingly used to guide transport planning in delivering a more integrated transport system to improve customer outcomes and support a range of user groups. Work is already underway in some jurisdictions to…
Sprayed Sealing of Drought and Salt Affected Pavements
This Pavement Work Tip is a practical guide to sprayed sealing in areas where a pavement may be affected by drought or salt content in its construction.
Review of Surface Texture Measurement Method for Seal Design Input
This report presents an extensive literature review of pavement surface texture measurement methods with a specific interest in how they affect operator safety and delays to traffic. The literature review shows that there are a number of methods in…
Review of Foamed Bitumen Sealing in Australia
In 1993, Austroads performed an extensive trial of foamed bitumen sprayed sealing in Australia, as a part of environmental and energy effective sealing technology development program. The trials were conducted in various states and reported to be…
Seal Distress Mechanisms: An Initial Study into Flushing
A review of bleeding or flushed seals was undertaken to determine what physical changes had taken place within the seal that had resulted in the binder lying at or close to the surface. The evaluation process used a visual appraisal and a digital…
Development of HDM-4 Road Deterioration (RD) Model Calibrations for Sealed Granular and Asphalt Roads

Improved RD models for sealed granular and asphalt pavements are needed. Pavement performance history data from state road authorities and New Zealand (SRAs) were used for calibrating RD models. The calibration and refinement of RD models is…