Evaluate the contribution of the mixture components on the longevity and performance of FC-5 : [summary].
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2014-05-01
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Abstract:At its most basic, an asphalt mixture is asphalt
binder and crushed stone aggregate. This
seemingly simple mixture is very complex; method
of preparation and application, additives, and
aggregate type all influence the quality and
durability of paved surfaces. Of course, what
is in the mixture is important, but so is what
“isn’t” there — the mixture’s air voids. Typical
asphalt pavements contain 4–7% air voids. An open
graded friction course (OGFC) mixture is a surface
mixture with 18-20% voids. OGFC is known for its
safety and driving comfort benefits due to better
splash and spray and runoff performance.
In this project, Rutgers University researchers
examined a Florida Department of Transportation
(FDOT) OGFC called FC-5. FDOT had observed
damage to some roadways paved with FC-5 and
contracted with the researchers to examine FC-5
components to understand their contribution to
FC-5’s performance.
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