Shingles On The Roads

1 decade 2 years 3 months ago Tuesday, July 17 2007 Jul 17, 2007 Tuesday, July 17, 2007 5:35:05 PM CDT July 17, 2007 in News

MoDOT is using recycled roof shingles in its asphalt mix. By using the recycled roof shingles, MoDOT found an innovative way to stay on budget, and help the environment.

MoDOT is building a new section of Lake Road 5-89 in Camdenton and it's using a different asphalt mix. The new mix uses old roof shingles.

"What you see, it may not look like it, but it's basically the roof shingles from roofs that you tear off, when you need to replace it. It's gone through a process where it's been ground up and delivered here to this location to be used for our asphalt mix design," said MoDOT engineer Bob Lynch.

At one construction site, the savings for MoDOT is in the thousands."This project alone, a relatively small amount of asphalt material will be laid here, somewhere in the neighborhood of 60- to 100-thousand dollars," said MoDOT Senior Construction Inspector Brad Dake.

With the increase in oil prices, the cost to resurface or construct news roads is going up. By using the recycled shingles, MoDOT is decreasing the amount of petroleum it needs to make the liquid asphalt.

"Specifically, for our project down here, we're roughly two percent of the overall design, but it can save up to about 20 percent of the liquid asphalt that's needed for a project," said Lynch.

MoDOT says drivers cannot detect a difference in the quality of the road, and expects it to last just as long.Using recycled shingles not only saves MoDOT money, but homeowners who recycle their roof shingles usually pay less in disposal costs.The Missouri Department of Natural Resources estimates more than 146-thousand tons of roofing materials end up in Missouri's landfills each year.

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