Pavement Service Life Extension Due to Asphalt Surface Treatment Interlayer

The main objectives of this study are to evaluate the Louisiana Department of Transportation and Development (LADOTD’s) current Asphalt Surface Treatment (AST) interlayer practice over soil-cemented base courses; determine the effectiveness of the AST interlayer practice in terms of its costs and benefits; develop statistical performance prediction models for each distress type of flexible pavement with and without AST interlayer over; and to develop guidelines/policies for the use of AST interlayers over soil-cement base.


    • English


    • Status: Active
    • Contract Numbers:



    • Sponsor Organizations:

      Federal Highway Administration

      5304 Flanders Drive, Suite A
      Baton Rouge, LA  United States  70808
    • Managing Organizations:

      Louisiana Transportation Research Center

      4101 Gourrier Avenue
      Baton Rouge, LA  United States  70808

      Louisiana Department of Transportation

      P.O. Box 94245
      1201 Capitol Access Road
      Baton Rouge, LA  United States  70804-9245
    • Project Managers:

      Zhang, Zhongjie

    • Performing Organizations:

      University of Louisiana at Lafayette

      104 University Circle
      Lafayette, LA  United States  70503
    • Principal Investigators:

      Jamal Khattak, Mohammad

    • Start Date: 20160701
    • Expected Completion Date: 20180630
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01601260
    • Record Type: Research project
    • Source Agency: Louisiana Transportation Research Center
    • Contract Numbers: 16-5P, 1000089
    • Files: RiP, STATEDOT
    • Created Date: Jun 1 2016 12:04PM