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Design and evaluation of jointed plain concrete pavement with fiber reinforced polymer dowels /
The primary objective of this study was to develop, implement, and evaluate a Level 1 performance-related specification (PRS) for the construction of a jointed plain concrete (JPC) pavement in the State of Wisconsin. The research entailed a thorough evaluation of the construction quality levels achieved on recent Wisconsin JPC projects and the formulation of a Level 1 PRS using the results of the quality evaluation and defined Wisconsin Department of Transportation (WisDOT) pavement practices as a basis. Feedback from WisDOT and the contractor indicated that this first PRS implementation in Wisconsin was successful, particularly with respect to the layouts of lots and sublots. Several suggestions were received to improve and streamline the PRS process.
The SPS-2 experiment, "Strategic Study of Structural Factors for Jointed Plain Concrete Pavements (JPCP)," is one of the key components of the Long Term Pavement Performance (LTPP) program. The main objective of this experiment is to determine the relative influence and long-term effectiveness of JPCP design features (including slab thickness, portland cement concrete flexural strength, base type and drainage, and slab width) and site conditions (traffic, subgrade type, climate) on performance. This report documents the first comprehensive review and evaluation of the SPS-2 experiment
The Mechanistic-Empirical Pavement Design Guide (MEPDG) Version 1.1 model was used to analyze the performance of three typical concrete pavement designs in Florida to evaluate their suitability for use as long-life concrete pavements and the effects of various design parameters on their performance. Concrete slab thickness, concrete flexural strength, and the aggregate used in the concrete were found to be the three most significant factors affecting the predicted performance of the pavement evaluated. The type of base material and the stiffness of the base material appear to have no significant effect on the predicted performance. The Long-Term Pavement Performance (LTTP) database was used to evaluate the effects of various factors on the performance of Jointed Plain Concrete Pavements (JPCP). Critical stress analysis was also performed on the selected LTPP JPCP selections to determine the maximum stress in the concrete slab under a critical load and temperature condition.
The report presents the results obtained from the soniscope instrument for use in the nondestructive testing of portland-cement concrete pavements. Essentially, the instrument was tested to determine if consistent velocity measurements could be obtained with the transducers in a position vertical on the prestressed, reinforced, and plain concrete pavements. Also, of interest during the investigation was the maximum distance through portland-cement concrete for which consistent velocity measurements could be obtained. (Author).
The Specific Pavement Studies 6 (SPS-6) experiment, "Rehabilitation of Jointed Portland Cement Concrete Pavements," was designed as a controlled field experiment that focuses on the study of specific rehabilitation design features of jointed plain concrete pavements (JPCP) and jointed reinforced concrete pavements (JRCP). This experiment examines the effects of climatic regions (wet-freeze, wet-no freeze, dry-freeze, or dry-no freeze), type of concrete pavement (plain or reinforced), condition of existing pavement prior to rehabilitation (fair or poor), and traffic rate (as a covariant), incorporating the different methods of rehabilitation with and without asphalt concrete (AC) overlays. This report documents the first comprehensive review and evaluation of the SPS-6 experiment.