Approximately how many tires are used per kilometre of road?
A. Because the rubber content varies, the number of tires used is different for different processes. The wet process recycles 1 to 2 tires per ton of asphalt and the dry process 4 to 6 tires. Since about 800 tonnes of asphalt are used per kilometre, rubberized asphalt processes can use about 600 to 4,000 tires per kilometre.