Crumb rubber asphalt is being laid on a busy Melbourne road as part of a new trial funded by Tyre Stewardship Australia (TSA), the Australian Road Research Board (ARRB) and the Victorian Department of Transport.
While already a proven technology on country roads, the project aims to increase opportunities to use crumb rubber asphalt on highly trafficked roads.
The asphalt will be laid on a 1.4 kilometre section of East Boundary Rd in Bentleigh East, with four seperate crumb rubber mixes and two asphalt control sections. The equivalent of 1600 car tyres will be used.
The trial is in line with the Victorian Government’s Recycled First policy, which aims to increase the use of recycled materials in construction projects, TSA CEO Lina Goodman explained.
“Australia generates the equivalent of 56 million used car tyres every year. Around 30 per cent of those end up in landfill or are stockpiled,” she said.
“Finding innovative and sustainable ways of using old tyres is vital, and crumb rubber asphalt roads are the perfect solution to a waste problem.”
According to ARRB CEO Michael Caltabiano, when added to an asphalt mix, crumb tyre rubber not only assists with the reuse of waste, but adds value to the road structure.
“ARRB’s applied research findings show that crumb rubber asphalt lasts longer, performs better and delivers a better economic outcome for the community,” he said.
Lab and field testing will be conducted at regular intervals, with a final report due by mid 2022.