RAS Usage by IDOT, Chicago, and the Illinois Tollway
Jul 06, 2012
Better Roads posted a web exclusive last week highlighting how the Illinois Tollway, the City of Chicago, and IDOT are saving money and the environment by using recycled asphalt shingles. “It’s been determined that about $30 per ton is being saved,” says Jay Benhke, owner of S.T.A.T.E. Testing. “The Tollway has seen savings in its stone-matrix asphalt (SMA).” The state is using a softer grade of asphalt to compensate for the stiffness of the shingle AC. To ensure performance, mixes must pass the rigorous Hamburg wheel test (video). There are more details in From Roof to Road: Using Recycled Asphalt Shingles in Roadbuilding by Tina Grady Barbaccia
Author: Heather Dolan
