We all use them but not many of us put much thought into what happens to old tyres once they're discarded. Now testing is underway to see whether tyres can be used to build tougher roads in the Northern Territory, designed to last in the extreme climate.
00:00Every year, hundreds of tonnes of old tyres pass through Darwin's waste system.
00:07Stored, processed and often sent interstate or overseas.
00:12Tyres in landfill take up valuable space and waste material that could be reused.
00:18We're all about diverting waste from landfill and reusing materials where possible as part of the circular economy.
00:25Darwin's wet-dry cycles and extreme heat take a toll on roads, forcing councils to regularly maintain the infrastructure which can cost ratepayers millions of dollars.
00:37Council has its municipal plan and it's all up to the elected members how much they allow us to spend each year, but generally it's in the $2 million mark.
00:47That's where researchers at Charles Darwin University come in, working with the NT government to test whether recycled materials can make roads stronger and more durable in tropical conditions.
00:59We want to try to replace the regular materials that are being used in the pavements with recycled alternatives, but try to keep the performance as it is or maybe also improve it to get a double benefit.
01:15It's hoped the lab results will translate into real world effects.
01:20Through this collaboration we will be able to promote this, make that confidence, offer enough training and support to the road agencies to make them sure that this is doable and this is good for NT.
01:34The Department of Logistics and Infrastructure says laboratory testing is well underway with road tests expected to begin this year.
01:42Independent experts say while the idea shows promise, it still needs to be proven on territory roads.
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