Boone County Expo Research Phase I- Granular Road Compaction and Stabilization- RB29-012

The Iowa Department of Transportation (DOT) worked with its research partners to design comparative pavement foundation test sections at the Central Iowa Expo Site in Boone, Iowa. The project was constructed from May through July 2012. Sixteen different 700 ft long test sections were constructed on 4.8 miles of roadway with the following goals: (1) Construct a test area that will allow long-term performance monitoring; (2) Develop local experience with new stiffness measurement technologies to assist with near-term implementation; (3) Increase the range of stabilization technologies to be considered for future pavement foundation design to optimize the pavement system. The test sections involved using the following stabilization technologies: woven and non-woven (NW) geosynthetic materials; triaxial and biaxial geogrids; 4 in. and 6 in. geocells + non-woven geosynthetics; portland cement (PC) and fly ash (FA) stabilization; PC stabilization of recycled subbase layer; PC + fiber stabilization of the subbase layer with polypropylene (PP) fibers and monofilament-polypropylene (MF-PP) fibers; mechanical stabilization; and high-energy impact compaction.


  • English


  • Status: Completed
  • Contract Numbers:


    ISU proposal # 11860

    Add 433

  • Sponsor Organizations:

    Iowa Department of Transportation

    800 Lincoln Way
    Ames, IA  United States  50010
  • Project Managers:

    Dunn, Mark

  • Performing Organizations:

    Iowa State University, Ames

    Institute for Transportation Studies
    2711 S. Loop Drive, Suite 4700
    Ames, IA  United States  50010-8864
  • Principal Investigators:

    Vennapusa, Pavana

    White, David

  • Start Date: 20120314
  • Expected Completion Date: 20131231
  • Actual Completion Date: 0
  • Source Data: RiP Project 35159

Subject/Index Terms

Filing Info

  • Accession Number: 01492623
  • Record Type: Research project
  • Source Agency: Iowa Department of Transportation
  • Contract Numbers: RB29-012, ISU proposal # 11860, Add 433
  • Files: RiP, STATEDOT
  • Created Date: Sep 11 2013 1:01AM