Test Methods
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Implementation of Ground Penetrating Radar (GPR) in Western Australia
Project Status: In ProgressExcavating test pits and/or drill coring to confirm the material profile and layer thicknesses is an important step in pavement evaluation preceding detailed rehabilitation design. However, these investigation techniques are destructive to the pavement, expensive,…
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Advanced Epoxy Timber Pile Repair
Project Status: In ProgressThe Western Australian road network still contains many timber bridges comprising Jarrah and Wandoo piles that have been in operation for more than 60 years. Despite their age, these structures are typically sound apart from…
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Development of a Standard Test Method for Measuring Capillary Rise of Non-Cohesive Soils
Project Status: CompletedWhen constructing roads, materials are affected by water rising up through the compacted layers, this capillary rise effect is measured and provided to Main Roads. As this is a requirement, designers use various methods to…
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Intelligent Compaction Control (ICC) – Field Trial Methodology and Trials
Project Status: In ProgressUniformity of placed roadwork material is one of the key elements for good performing roads. In recent years, Intelligent Compaction Control (ICC) technology has been increasingly used to assist contractors to improve construction quality. This…
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Development of a Bond Strength Test for Assessing Delamination Potential of Asphalt Pavements
Project Status: In ProgressWith innovative and high-performance asphalt mixes such as EME2 and warm-mix asphalt being applied on WA roads, the possibility that these new technologies may not sufficiently bond with adjacent layers is a concern. For a…
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Investigation of Asphalt Pavement Temperatures in Western Australia
Project Status: In ProgressAcross WA, temperatures vary immensely such that when designing asphalt pavements, accounting for these temperature ranges can have a large impact on pavement thickness. To better understand how to cater for the extreme heat fluctuations…
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An Evaluation of the Traffic Speed Deflectometer (TSD) for Main Roads Western Australia
Project Status: CompletedAdvances in technology now make it possible to collect information about the condition of our roads at speed. The Traffic Speed Deflectometer (TSD) is equipped with doppler lasers, GPS, cameras, temperature probes and 3D sensors;…
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