United States Department of Transportation
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The use of polymer modified asphalt binder for high friction thin lift overlays in Connecticut.
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2014-09-01
[PDF-2.80 MB]
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Abstract:Controlling the frictional characteristics of a roadway is of paramount importance when considering highway safety. Several state highway agencies specify a friction wearing course to be used in high profile or high accident prone areas. The Connecticut Advanced Pavement Lab along with Connecticut DOT investigated a polymer modified high friction wearing course placed in CT in 2012. Laboratory tests including moisture susceptibility and rutting susceptibility indicated no potential for premature failure of the wearing surface. Field testing of both pavement macrotexture and skid testing also show promise that this mix will enhance tire to pavement interface friction. Several field visits to the site have indicated that the surface is performing well to date regarding its durability.
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