Thin overlay guidelines : project selection, design, and construction.
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2015-04-01
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Abstract:Thin hot mix asphalt (HMA) overlays are
cost-effective, high-performance maintenance
treatments. They can be laid at 1.0 to 0.5 inches
thick and consist of quality aggregate and binder
materials. The costs are generally more (per ton)
than conventional overlay mixes; however, due to
their thin application they cost less per square yard.
The Austin District has realized a 30 percent savings
per square yard over typical 2-inch-thick,
conventional, dense-graded mixes.
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