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Layer moduli of Nebraska pavements for the new Mechanistic-Empirical Pavement Design Guide (MEPDG).

File Language:
English


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  • Creators:
  • Corporate Creators:
    University of Nebraska--Lincoln. Dept. of Civil Engineering
  • Subject/TRT Terms:
  • Publication/ Report Number:
    MPM-08
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    Nebraska Transportation Center
  • Abstract:
    As a step-wise implementation effort of the Mechanistic-Empirical Pavement Design Guide (MEPDG) for the design

    and analysis of Nebraska flexible pavement systems, this research developed a database of layer moduli — dynamic

    modulus, creep compliance, and resilient modulus — of various pavement materials used in Nebraska. The database

    includes all three design input levels. Direct laboratory tests of the representative Nebraska pavement materials were

    conducted for Level 1 design inputs, and surrogate methods, such as the use of Witczak’s predictive equations and the

    use of default resilient moduli based on soil classification data, were evaluated to include Level 2 and/or Level 3 design

    inputs. Test results and layer modulus values are summarized in the appendices. Modulus values characterized for each

    design level were then put into the MEPDG software to investigate level-dependent performance sensitivity of typical

    asphalt pavements. The MEPDG performance simulation results then revealed any insights into the applicability of

    different modulus input levels for the design of typical Nebraska pavements. Significant results and findings are

    presented in this report.

  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:a77f7183ef78f212fbf3ca7b98153f96acb7574abf7aba19684a5b62229863663c5c4a0da19f9ce255e719459190d4f620ba7602c9aa2873623cfe3ca2f3bdef
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  • File Type:
    Filetype[PDF - 2.65 MB ]
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