Oct. 15Most asphalt roads can last seven to 10 years before needing a repave, but the Missouri Department of Transportation is working to make sure repairs last as long as possible.
Local roads have been getting treated with Scrub Seal, a preventative maintenance treatment that goes over existing asphalt overlay surfaces.
The product reseals the surface and fills cracks in an attempt to extend the life of the pavement.
"If we wait three to five years after a payment's completed, we start to notice that deterioration reaches that point," said Austin Hibler, district construction materials engineer for MoDOT's northwest district. "We can come in and apply this preventative maintenance treatment, seal it up and get another five to seven years out of it ideally."
While the spray lays on top of the pavement, it has little effect on the actual driving conditions.
"You shouldn't notice it," Hibler said. "They're putting a real fine aggregate rock material over the top of the oil and rolling it in to help seal it and then provide a bit of structure to it."
Currently the spray has been used on parts of Frederick, North Belt and Highway 59. Other roads that MoDOT controls are preparing to get the same treatment through a contract with Vance Brothers.
The process is relatively fast and easy, which allows for more to be done in a shorter time.
"There are multiple routes in this area under this contract that are in the process of being completed by the end of October," Hibler said. "They've done the major routes here and they're going to work on some of those side roads."
The full list and schedule of roads to be surfaced can be found on MoDOT's website.
Link:
MoDOT working to extend longevity of roads - Yahoo News
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