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Impact of design features on pavement response and performance in rehabilitated flexible and rigid pavements.
  • Published Date:
    2011-10-01
  • Language:
    English
Filetype[PDF-4.85 MB]


Details:
  • Publication/ Report Number:
  • Resource Type:
  • Geographical Coverage:
  • Edition:
    Final report.
  • NTL Classification:
    NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance ; NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance ; NTL-HIGHWAY/ROAD TRANSPORTATION-Design ; NTL-HIGHWAY/ROAD TRANSPORTATION-Materials ;
  • Abstract:
    The primary focus of this research was to determine the effects of design and construction features, such as overlay

    thickness and mix type, presence of milling, and type of restoration, on pavement response and performance and to

    establish their importance in the prediction of future performances of rehabilitated pavements. Long-Term Pavement

    Performance program Specific Pavement Study (SPS)-5 and SPS-6 experiments provided information to obtain a

    better understanding of the effects of design and construction features on pavement response and performance of

    rehabilitated flexible and rigid pavements. The research findings provided guidance to identify appropriate features

    and rehabilitation alternatives for different pavement types and recommendations for improving data collection

    activities. The analyses results obtained in this study helped determine the causes of distress and helped formulate

    models for predicting performance of rehabilitated pavements. In addition, data from SPS-3 and SPS-4 experiments

    were used to determine effectiveness and timing of preventive maintenance treatments. The findings suggest that it is

    possible to determine significant differences between treatment alternatives with respect to pavement performance

    and treatment timing. Performance of rehabilitated pavement sections from SPS-5 and SPS-6 were also examined

    using the Mechanistic Empirical Pavement Design Guide and compared with the field performance.(1) The results

    provide useful information about rehabilitated pavement section performance predictions and recommendations for

    future model improvements.

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