2272 - Performance of Moisture Barriers to Enhance Pavement Performance Over Swelling Soils

The Oklahoma Department of Transportation has invested significant amounts of money on several projects to construct low-permeability barriers to prevent moisture changes in swelling soils beneath pavements. However, there has been relatively little post-construction monitoring of these sites to assess the performance and cost-effectiveness of the moisture barriers and associated pavements. Given the high material cost and additional construction cost associated with installing moisture barriers, there is a need to assess performance relative to reductions in moisture infiltration into swelling subgrades. Given the current state-of-the-art knowledge in this field, there is a need for laboratory soil testing, field monitoring, and numerical modeling of the problem. This research will assess the performance of moisture barriers, determine whether these are cost-effective solutions for pavement design over swelling soils, and develop recommendations for enhancing the design of moisture barriers.

  • Supplemental Notes:
    • An award for year two of this study has not been approved.

Language

  • English

Project

  • Status: Active
  • Funding: $98895
  • Contract Numbers:

    SPR 2272

    SPRY-0010(071)RS

  • Sponsor Organizations:

    Oklahoma Department of Transportation

    200 NE 21st Street
    Oklahoma City, OK  United States  73105
  • Project Managers:

    Clarke, Christopher

  • Performing Organizations:

    Oklahoma State University, Stillwater

    School of Civil & Environmental Engineering
    207 Engineering South
    Stillwater, OK  United States  74078
  • Principal Investigators:

    Bulut, Rifat

  • Start Date: 20171001
  • Expected Completion Date: 20180930
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01578486
  • Record Type: Research project
  • Source Agency: Oklahoma Department of Transportation
  • Contract Numbers: SPR 2272, SPRY-0010(071)RS
  • Files: RiP, STATEDOT
  • Created Date: Oct 22 2015 1:45PM