Design
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Monitoring of Base Bitumen into Western Australia
Project Status: In ProgressBitumen is a residual product from the distillation of crude oil and is one of the most commonly used construction materials in the world. There are a wide range of crude sources with varying chemical…
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Communicating Benefits of Revised Thin Asphalt Design Method
Project Status: In ProgressStemming from previous WARRIP projects investigating fatigue design of granular pavements with thin asphalt surfacing and updating of Main Roads Engineering Road Note 9 Procedure for the Design of Road Pavements (2013), two different methods…
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Management of Perth’s Smart Freeways Long Lever Cantilever Sign Structures
Project Status: In ProgressAs part of Perth’s new Smart Freeways project, long-lever (between 16-22 m) cantilever sign structures were constructed and installed in along the northbound carriageway of the Kwinana Freeway. Due to limited stock of steel circular…
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Impact of Large Stone Fractions on the California Bearing Ratio of Granular Pavement Materials
Project Status: In ProgressGranular materials used in the design and construction of pavement base and subbase layers are often assessed for suitability based on the California Bearing Ratio (CBR) value. This measure provides an indication of the load…
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Investigating the Use of Recycled Plastic in Future Sustainable Road Infrastructure
Project Status: In ProgressCurrent waste management challenges across the world have required governments to develop innovative policies that target the implementation of single-use materials throughout the economy. Sustainable materials and construction practices are the future of road infrastructure…
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Investigating the use of Recycled Materials in Granular Support Layers in Western Australia
Project Status: CompletedWith the intention of reducing Western Australia’s reliance on non-renewable resources, there has been an increased focus on identifying high-value applications for using recycled waste materials within civil infrastructure applications. WARRIP will investigate two materials,…
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Investigating the use of Reclaimed Asphalt Pavement from Asphalt Containing Crumb Rubber Modified Binder
Project Status: CompletedAs new technology is trialled and rolled out there is a need to determine how recyclable these materials are. Crumb Rubber Modified (CRM) bitumen is gaining momentum and WARRIP is investigating the recyclability of asphalt…
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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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Transfer of Crumb Rubber Modified Bitumen Technology to Western Australia
Project Status: In ProgressThe practice of recycling end-of-life tyres for use in road construction has been in place for over 30 years in Western Australia (WA). Crumb rubber modified (CRM) binder technology when applied to asphalts and sprayed…
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