Shoulder rehabilitation using portland cement and recycled asphalt pavement Winslow, U.S. Route 201 : [construction report & second year interim report].
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2003-10-01
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Abstract:Maine has hundreds of miles of roadway originally constructed with Portland Cement Concrete that now
are covered with Hot Mix Asphalt overlays. In 2001 the Maine Department of Transportation utilized an
experimental construction technique on one of these PCC highways. The project was a rehabilitation and
resurfacing project located in Winslow. In an effort to provide a more durable roadway, recycled
materials were used in an innovative way. The project utilized Portland cement, together with reclaimed
asphalt pavement (RAP) milled from the highway, together with new aggregate to reinforce and stabilize
road shoulders adjacent to the existing old concrete slabs. The goal was to strengthen the shoulder
adjacent to the existing concrete slabs and widen the travel lanes to prevent future premature deterioration
in the shoulder. Figure 1 shows the project location. In this report the mixture of pavement grindings
(RAP) and Portland cement material will be referred to as RAP/PC blend
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