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Supply of Polymer Modified Binders
Austroads Technical Specification ATS 3110 sets out the requirements for the supply of polymer modified binders (PMBs) and crumb rubber modified binders for use in both sprayed sealing and asphalt applications. The technical specification can also…
Webinar: Austroads Rejuvenator Evaluation Protocol for Increasing Asphalt Recycling
The use of reclaimed asphalt pavement (RAP) in new asphalt mixes is a common practice in Australia and New Zealand due to its many benefits. RAP contents are typically about 10&ndash
Aggregate Wetting and Initial Adhesion of Sprayed Sealing Binders

Cutting solvents have been traditionally added to binders used in sprayed sealing in Australia and New Zealand to ensure that effective adhesion occurs between binder and aggregate. Recent Polymer modified binder (PMB) sealing failures, which have…

Aggregate Wetting Experiments and Effects on Recommended Polymer Modified Binder Cutter Levels

The work described in this report determines updated cutter level recommendations for S10E and S20E binders. Studies were also conducted to investigate the relationship between the contact angle of water on films of bitumen and PMB binders, and…

Investigation into the Properties of Alternative Surfacing Binders and Bitumen Extending Binders

Bitumen is a major component used in the construction of roads in Australia and New Zealand. As it can only be manufactured from a small number of the crude oils in the world, the future supply and cost of bitumen will be directly linked to the…

Segregation and Degradation in Commercial SBS Binders

This study obtained an indication of the proportion of Australian commercially manufactured polymer modified binders (PMBs) liable to segregate, identifed suitable tests to measure segregation propensity and proposes measures to help prevent or…

The Effect of Styrene Butadiene Styrene (SBS) Morphology on Field Performance and Test Results: An Initial Study

Styrene butadiene styrene (SBS) is the most commonly used polymer modified binder (PMB) type. It provides substantial performance enhancement in seals and asphalts, compared to unmodified bitumen. However, there have been field failures, and…