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Review of Findings of National Scour and Waterway Risk Screening Programme for State Highway Bridges in New Zealand
The New Zealand Transport Agency recently carried out a nation-wide screening of state highway bridges for scour and other bridge waterway risks. This paper outlines lessons learned from the implementation of the screening programme and reviews the…
2010-11 Queensland Floods and Cyclone Events- Learning for Structures
The summer of 2010 / 2011 represents an extreme event. The majority of Queensland was declared a natural disaster zone as a result of the damage caused by non-typical flooding and cyclones throughout the State. It is estimated $4.5 billion dollars…
Investigation of Concrete Bridge Pier Service Life Extension Through Introduction of Pier Jacketing
Alkali aggregate reaction, or AAR, is one of the major causes of degradation in older concrete structures. AAR occurs when the hydroxide ions that exist in the cement react with aggregate, often with water acting as a catalyst to speed up this…
Remediation of Bridges After the Queensland January 2011 Flood
In January 2011, Queensland experienced a rain event, unlike any other in recent history. Unprecedented damage occurred to the infrastructure in many parts of Queensland. After the flood event, Aurecon was commissioned to assist in flood damage…
Selection of a Laboratory Asphalt Compactor for Australasia

This report summarises work conducted to establish a compaction procedure for the Austroads asphalt mix design process. Part of the early work examined overseas research and this is briefly summarised to provide supporting evidence as to the…

Implementation of Austroads Mix Design Procedures: 2009-2010

The Austroads asphalt mix design method was developed in 1997 and has had a number of revisions over the intervening years as test methods evolve and experience is gained. However, implementation of the method has been variable across the various…

Uncertainty of Measurement Estimates for Austroads Asphalt Test Methods

The development of an Austroads asphalt mix design procedure led to adaptation and adoption of a number of overseas test methods. These test methods were then compiled into what has become a suite of Austroads test methods. The Austroads test…

Review of Structural Design Procedures for Foamed Bitumen Pavements

This report presents a review of the available structural design methods for foamed bitumen pavements, as a first step in the development of thickness design procedures. Six design procedures were found in the literature, most of them based on well…

A Laboratory Study of the Influence of Multiple Axle Loads on Performance of a Cement Treated Material - Interim Report

This report details a laboratory investigation of the effects of different multiple-axle load groups on the fatigue performance of cement treated materials. In the Austroads flexible pavement design process the performance of cement treated…

Testing Plan to Examine the Effects of Multiple Axle Loads on Asphalt Fatigue Using Four-point Beam Tests

This report presents a testing plan to examine the effect that multiple axle group loads (e.g. tandem, triaxles, etc.) have on the flexural fatigue performance of asphalt, and forms a component of long term Austroads project work. The testing plan…