Charles Darwin University investigates whether old tyres can strengthen roads

ABC News recently spotlighted research from Charles Darwin University testing whether tyre-derived crumb rubber can help roads better withstand the Northern Territory's conditions — extreme heat, harsh UV and wet-season downpours that can accelerate cracking and potholing.

Crumb rubber asphalt is already associated with performance benefits such as improved flexibility and cracking resistance when designed and applied well.

The key question CDU is answering is: Does it hold up under Territory conditions, over time?

Road trials are expected to begin this year.

While this story focuses on NT research, the takeaway is national: proving performance in real conditions is what helps road owners and asset managers adopt recycled materials with confidence.

If you’re in local government, it’s worth asking: is this something your roads programme should be testing next?

With councils responsible for around 75% of Australia’s road network, local procurement decisions can directly accelerate the use of recycled materials in roads and help keep valuable resources out of landfill.

TSA is proud to have supported this project through our Market Development program.

Image: ABC News, 2026