Engineering the Properties of Asphalt Mixtures Using Carbon Nanotubes

Traditional polymer modified binders are typically used to achieve a target performance grade (PG) and also to enhance resistance of the binder to distresses, such as rutting, fatigue cracking, and low-temperature cracking. Conventional modifiers used with asphalt binders are often expensive and are not very effective to improve the low-temperature properties. Recent advances in nanotechnology have allowed for the development of novel materials that can be tailored to deliver improvements in both high and low-temperature properties of the modified composite. Carbon nanotubes (CNTs) are one of the most promising classes of materials to show reduced rutting at high temperatures. However, simultaneous improvements in low-temperature properties can only be achieved if the CNTs are surface modified to effectively disperse in the binder and break the viscosity building molecular associations at low temperatures. The Performing Agency (referred to hereafter as the "research team") shall evaluate an innovative and novel method to deliver CNTs into the binder via water, used in the production of foamed warm mix asphalt (WMA).


  • English


  • Status: Completed
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

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

    Odell, Wade

  • Performing Organizations:

    University of Texas - Pan American

    Edinburg, TX  United States  78539

    University of Texas, Austin

    Center for Transportation Research
    Austin, TX  United States 
  • Principal Investigators:

    Saleh, Navid

  • Start Date: 20150202
  • Expected Completion Date: 20170228
  • Actual Completion Date: 0
  • Source Data: RiP Project 39969

Subject/Index Terms

Filing Info

  • Accession Number: 01569093
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-6854
  • Files: RiP, STATEDOT
  • Created Date: Jul 1 2015 2:46AM