Composite Pavement Systems (SHRP 2 Prepublication Report*)
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Greetings!
Many transportation agencies have expressed interest in composite pavement systems, specifically a) high-quality relatively thin hot-mixed asphalt (HMA) surfacing over a new Portland cement concrete (PCC) structural layer and b) high-quality relatively thin PCC surfacing atop a thicker, structural PCC layer. SHRP 2 Project R21 (Composite Pavement Systems) reviewed the behavior, material properties, and performance of these two types of pavements. The final report describes the evaluation, improvement, and validation of applicable structural, climatic, material, and performance prediction models, and design algorithms. It also includes recommendations for construction specifications and techniques, life-cycle costing, and training materials. Volume 1 focuses on HMA/PCC Pavements; Volume 2 focuses on PCC/PCC Pavements; and the appendices provide survey results, details about the evaluations, and the history of the pavements.
* To make research available as early as possible, SHRP 2 is temporarily posting final reports that have been submitted by the research team, reviewed according to the relevant National Academy of Sciences procedures, and accepted for publication. These prepublication drafts, which have not been edited or formatted for publication, will be replaced by the final versions as they complete the editorial process.
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