Development of Performance-Related Specifications for Portland Cement Concrete Pavement Construction
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1990-05-01
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Abstract:The primary product of this study was a demonstration performance -related specification (PRS) system for PCC pavement construction. The system is designed to consider three key factors (ie, PCC strength, slab thickness and initial serviceability) in assessing an as-constructed pavement delivered by a contractor and calculating an appropriate reward (bonus/incentive) or penalty (disincentive). Many pavement performance prediction relationships and PCC property prediction equations were evaluated to develop the performance-related aspects of the new system. In addition, a rather intensive experimental laboratory study of PCC material properties was conducted to develop better multi-factor prediction relationships. The demonstration PRS was developed using a computerized spreadsheet program. It was designed to be parallel to the demonstration PRS system developed under NCHRP Project 10-26A for asphalt concrete pavements. As a result of the study, recommendations were made for further research in several key areas related to PRS systems and field and laboratory studies.
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