Tyre Stewardship Australia: crumb rubber asphalt performance insights for road engineers
Reviewed by Joe Ashwell

First reported on Roads & Infrastructure (AU)
30 Second Briefing
Crumb rubber asphalt produced from end-of-life tyres is moving from niche use to routine specification in Australian road surfacing, with Tyre Stewardship Australia citing growing government and industry confidence in large-scale procurement. Rubber‑modified binders, created by blending crumb rubber into bitumen, are delivering quantifiable engineering gains such as improved elasticity and cracking resistance, as shown in recent Western Australian trials. For pavement designers and asset managers, this signals wider acceptance of crumb rubber mixes in standard specifications rather than as one‑off innovation projects.
Technical Brief
- Rubber-modified binders are produced by blending finely ground end-of-life tyre crumb into conventional bitumen.
- For similar projects, key design questions are binder dosage, crumb gradation and compatibility with existing plant.
Our Take
Roads & Infrastructure Magazine’s recent “Roads Review: Looking Forward” piece (27 Jan 2026) also highlights a shift from mega-projects to culture and lifecycle thinking, which aligns with Tyre Stewardship Australia’s focus on durability and stewardship rather than just new build volume.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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