Publications

One of the most significant breakthrough developments in concrete technology at the end of the 20th century was that of ultra-high performance ‘ductile’ concrete (UHPdC) with compressive strength up to 200 MPa and remarkable improvements in…

Reinforced concrete made its way into road bridges at the start of the twentieth century after being invented by Joseph Monier in 1875. By 1950 reinforced concrete was dominant for small and medium spans and vying with steel for longer spans. Their…

The Sulfate-resisting concrete is traditionally specified by cement type and concrete mix proportions in terms of maximum water-cement ratio and/or minimum cement content.

The RTA Bridge Engineering Branch and Asset management Section routinely assess proposals by external developers that involve deep excavations for new infrastructure construction located adjacent to its bridge structures. These excavations have the…

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…

All the existing bridges require a maintenance regime to enable the structure to sustain the current traffic loads. The defects in the structure can be identified through regular inspections. There should be a defined inspection procedure not to…

The standard Super-T bridge girders used in Australia were developed to provide optimum performance at a time when the maximum concrete grade covered by the bridge design code was 50 MPa. This paper examines the opportunities for improved…

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 Banora Point Upgrade Alliance (BPA) project involves an upgrade of the 2.5 kilometer length of Pacific Highway through Banora Point, in northern NSW. The proposed upgrade will provide a link between the existing Chinderah bypass and Tweed…

Self-compacting concrete (also known as Super-workable concrete in Australia and Self-consolidating concrete in North America) is defined in EN 206 Part 9: Additional Rules for Selfcompacting Concrete (SCC) as concrete that is able to flow and…