New rubberized asphalt laid on I17 in Phoenix, USA

In Arizona, I17 interstate highway is being repaired between Glendale and Dunlap. The road maintenance is to lay a new layer of rubberized asphalt. Arizona Department of Transportation (ADOT) has been utilizing crumb rubber from used tires to pave roads and highways throughout the entire state. Rubberized asphalt makes ride smoother and finds use for millions of scrap tires which usually ended up at junkyards.

ADOT’s representative Doug Nintzel says the Department had spread the initiative all over Arizona by approaching regional authorities and urging them to pave highways or at least overlay them with rubberized asphalt.

The crucial component of the rubberized asphalt’s endurance and numerous beneficial properties is tire-derived crumb rubber. Rubberized asphalt production in fact begins from shredding scrap tires and milling them into a fine crumb rubber. Afterwards, contractors blend crumb rubber with hot asphalt and pave roads.

Nintzel added that the last time I17 was subject to road maintenance was in 2000s and the last overlay lasted over 15 years, 5 years more than it was anticipated. According to Nintzel, rubberized asphalt makes the road smoother and better for vehicles. Also, it reduces the noise and makes highway construction and maintenance more cost-efficient.

Article source: Fox 10 Phoenix

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