Publications

A wide range of test methods has been used to measure the resistance of concrete to chloride penetration. Each method is purported to measure the property of concrete central to the chloride transport mechanism into concrete. They include water…

Recent changes to the Australian and New Zealand Standards AS/NZS 1163:2009 Cold-formed structural steel hollow sections, AS/NZS 3678:2011 Structural steel Hot-rolled plates, floorplates and slabs, AS/NZS 3679.1:2010 Structural steel Hot-rolled bars…

The Roads and Traffic Authority of NSW (RTA) has had various concerns regarding the quality of the “cover concrete” produced by contractors and suppliers using certain types of bar chairs in the manufacture of concrete products for RTA bridges.…

A significant number of railway bridges within New South Wales are constructed from steel and have riveted connections which are forced to flex when transmitting loads through the structure. These connections are typically considered to have only a…

Mohaka Bridge is 216.4 meters long and was constructed in 1962. It is a steel truss bridge supporting a concrete deck. The trusses are supported on two abutments and two central piers. Two approach spans are supported on two secondary abutments. The…

The Auckland Harbour Bridge (AHB) is a steel truss bridge with welded orthotropic box girder extensions on both sides and provides a critical link over the Waitemata harbour. The logistical layout of the surrounding area does not provide any other…

Corrosion damage of steel elements is the main driver for development of corrosion management strategies by Asset Managers, the implementation of which draws significant amount from the government treasury. Since economic viability of any project is…

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…

This report summarises some of the literature dealing with the compaction of dense graded asphalt. Compaction of asphalt is usually expressed in terms of air void content. This is necessary as the aggregate which constitutes about 95% of the mass of…

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…