Publications

One of the hottest discussed topics in the international engineering community at present is sustainability of infrastructure with respect to global warming and climate change. Global warming and climate change could result in frequent extreme…

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…

The Roads and Traffic Authority (RTA) Hunter Region boasts three operational opening bridges

Buried Corrugated Metal Structures (BCMS) are a much less expensive option compared to other forms of buried structures such as rigid structures. The BCMS draws its strength from the interaction between the structure wall and the surrounding soil.…

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…

The RTA has a large and growing construction budget each year for new works. All major works are carried out under Quality Assurance (QA) contracts. QA has been used to deliver construction contracts within the RTA since the early 1990’s. Within the…

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…

In cable stayed bridges corrosion and fatigue as well as extreme loadings such as earthquake, lightning strike and blast may lead to loss of cables. The vulnerability of cable stayed bridges for such cable loss scenarios has not been thoroughly…

Orthotropic decks of steel road bridges are widely used in many countries around the world and provide high stiffness at low mass. During their service life they are subject to fatigue that may lead to cracking due to insufficient detailing, poor…

Significant information is available on normal rust in literature, however little is known about black rust. Black rust is hard to detect as it does not have any tell-tale signs such as cracking, rust stains and spalling usually associated with…