The City of Parramatta Council is trialling two innovative sustainable road solutions aimed at reducing waste materials and combatting heat. An asphalt product incorporating recycled soft plastics from plastic bags and packaging, waste glass and waste toner from used printer cartridges Reconophalt, will be used in the first trial in Epping and Ermington.
City of Parramatta, Lord Mayor Cr Bob Dwyer acknowledged the growing problem that single-use plastics and other materials pose to the environment.
“Finding new ways to recycle and reuse materials means we can reduce the amount of waste that ultimately enters landfill,” he said. “By taking tonnes of plastic and glass from local recycling plants and using it to create roads, we are able to turn trash into treasured infrastructure.”
According to the manufacturer of Reconophalt, Downer, the equivalent of approximately 500,000 plastic bags, 165,000 glass bottles, and 12,500 toner cartridges is diverted from landfill for every 1km of a two-lane road.
Partial DPIE funding
This project has been partially funded through the NSW Department of Planning, Industry and Environment’s ‘Waste Less, Recycle More’ initiative, which has been funded by the waste levy.
The second trial, which is being conducted in partnership with Blacktown and Campbelltown councils and Western Sydney University, will examine how lighter coloured roads can help reduce the amount of heat being absorbed and retained by roads on hot days. Renoir Street, Old Toongabbie; Roslyn Avenue, Northmead; Corry Court and carpark, North Parramatta; and part of Binalong Park car park, Old Toongabbie are among the first roads in NSW to be coated with a new ‘cool’ seal coat, GuardTop CoolSeal, a light grey coloured coating, which can be 5-14ºC cooler than regular dark asphalt on a hot day. It is applied to asphalt surfaces to protect and maintain the quality and longevity of the surface.
Researchers from Western Sydney University will collect and analyse data taken from the trial sites, before determining the product’s overall impact in reducing heat.
“As Western Sydney can be several degrees hotter than suburbs in the east, it is crucial we explore ways we can keep our streets cooler – especially in the summer,” Dwyer said.
“Parramatta is going through an incredible period of growth and transformation, and Council is dedicated to building a sustainable and innovative City that will meet the needs of our community well into the future. These road projects are just two examples of how we are achieving this,” he added.