Updated Layer Coefficients for GDOT Flexible Design

The primary objectives of this study are to: (1) evaluate the layer coefficients of the pavement materials including Polymer Modified Asphalt (PMA), Stone Matrix Asphalt (SMA), Superpave Hot Mix Asphalt (HMA), Graded Aggregate Base (GAB), and Soil Cement (SC) currently used by Georgia Department of Transportation (GDOT) and provide updated layer coefficient values for those materials, and (2) develop a Standard Operating Procedure (SOP) that GDOT can use to estimate the layer coefficients when the new materials become available.


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    • Status: Completed
    • Funding: $215000
    • Sponsor Organizations:

      Georgia Department of Transportation

      One Georgia Center
      600 West Peachtree Street, NW
      Atlanta, GA  United States  30308
    • Project Managers:

      Bui, Binh

    • Principal Investigators:

      Kim, S. Sonny

    • Start Date: 20181025
    • Expected Completion Date: 20201225
    • Actual Completion Date: 20220325

    Subject/Index Terms

    Filing Info

    • Accession Number: 01702260
    • Record Type: Research project
    • Source Agency: Georgia Department of Transportation
    • Files: RIP, STATEDOT
    • Created Date: Apr 19 2019 1:58PM