Sustainable Perpetual Asphalt Pavements and Comparative Analysis of Lifecycle Cost to Traditional 20 Year Pavement Design

Since 2001, the State of Texas has been designing and constructing Perpetual Pavements on heavily trafficked highways where the estimated 18 kip equivalent single axle loads (ESALs) exceed 30 million after a 20-year design period. Perpetual Pavements, also commonly known as full-depth asphalt pavements, are pavement structures designed not to have major structural rehabilitation or reconstruction work, but requiring only minor periodic surface renewals for at least 50 years. To date, there are 10 Perpetual Pavement sections in service within Texas. With the oldest section having a service life of over 12 years, there is an opportunity to review the existing Perpetual Pavement design and construction practices with a View of modifying the design procedures and recommending the best construction practices to meet current traffic demands. The concern regarding these Perpetual Pavements was cost; as it was suggested that they were excessively thick and that their multiple lifts of different mixes made Perpetual Pavements difficult and expensive to construct. A critical review of field performance is warranted with recommendations on how to make these pavements cost competitive with both conventional 20 years flexible pavements and rigid concrete pavements.


  • English


  • Status: Active
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

    125 E. 11th Street
    Austin, TX  United States  78701-2483
  • Project Managers:

    Odell, Wade

  • Performing Organizations:

    Texas A&M Transportation Institute, College Station

    Texas A&M University System
    3135 TAMU
    College Station, TX  United States  77843-3135
  • Principal Investigators:

    Walubita, Lubinda

  • Start Date: 20150127
  • Expected Completion Date: 20171130
  • Actual Completion Date: 0
  • Source Data: RiP Project 39157

Subject/Index Terms

Filing Info

  • Accession Number: 01569106
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-6856
  • Files: RiP, STATEDOT
  • Created Date: Jul 1 2015 2:46AM