Crumb Rubber in Roads Fact Sheet

The Benefits of Surfacing Roads with Tyre Derived Crumb Rubber - Findings and Facts.

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National Specifications for Crumb Rubber Modified (CRM) Asphalt

In 2019 Tyre Stewardship Australia (TSA) and the Australian Asphalt Pavement Association (AAPA) introduced new national specifications for Crumbed Rubber Modified (CRM) asphalt, published in June 2019, for open graded asphalt (OGA) and gap graded asphalt (GGA) mix designs.

The pilot specification set out the requirements for CRM OGA surface layers with a nominal maximum aggregate size of 10 mm and 14 mm. The specification also includes requirements for CRM GGA mixes with a nominal maximum aggregate size of 14 mm and 20 mm.