Abstract
The rapid repair and rehabilitation of roadways with high traffic volumes is a critical need faced by all highway agencies. This need has been the catalyst for development of long-lasting precast concrete pavement (PCP) systems as alternatives to cast-in -place procedures. In the US, PCP has been shown to be a ready-to-use technology, and its effective implementation has served to reduce construction-related congestion, improve work-zone safety, and provide long-lasting pavement performance. Highway agencies in the US have recognized the potential for using PCP to achieve long-life performance for pavement rehabilitation while reducing the overall duration of lane closures on heavily trafficked roadways. PCP typically is used where high volumes of traffic limit work zones to off-peak times such as nighttime periods, and where longlife pavement performance is desired. The uses of PCP include, but are not limited to: replacement of intersections where rutting and shoving of existing asphalt requires frequent maintenance activity; reconstruction of ramps and mainline sections of heavily trafficked roadways; full-depth replacement of deteriorated joints; reconstruction of bridge underpasses where prestressed concrete can provide increased load-carrying capacity without increasing pavement thickness; overlays of existing concrete and asphalt pavements; inlays of existing asphalt pavements; and the replacement of bridge approaches. This paper provides a brief summary of the highway agencies that used PCP during the years 2000 through 2014; a summary of the uses of PCP planned and underway by highway agencies in response to a rollout of PCP technology by the 2nd Strategic Highway Research Program (SHRP2), and key reference documents published by the Federal Highway Administration (FHWA) and others to advance the use of PCP technology.
Published Version
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