TECHNICAL GUIDELINES FOR EXPANSIVE SOILS IN HIGHWAY SUBGRADES

Volume change of expansive soil subgrades resulting from moisture variations causes an estimated annual damage of $1.7 billion to streets and highways. Minimization of the detrimental damage to pavements on expansive soils was the subject of a 4-yr research study conducted by the U. S. army Engineer Waterways Experiment Station. The results of that study that should be implemented are presented in this report. Technical guidelines are presented on: the location of potentially expansive soil areas using occurrence and distribution maps, as well as alternative sources of information; field exploration and sampling of expansive soils; identification and classification of potentially expansive soils using index and soil suction properties; testing of expansive soils and prediction of anticipated volume change; selection of appropriate treatment alternatives; and presentation of design, construction, and maintenance recommendations for new and existing highways. Appendixes to the technical guidance report describe the soil suction test procedures, a standard procedure for odometer swell tests, procedure for calculating the Potential Vertical Rise (PVR), a bibliography on treatment alternatives, and standards for field monitoring data. /FHWA/

  • Corporate Authors:

    U.S. Army Waterways Experiment Station

    Geotechnical Laboratory, 3909 Halls Ferry Road
    Vicksburg, MS  USA  39180-6199

    Federal Highway Administration

    Engineering Research and Development Bureau, 1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Snethen, D R
  • Publication Date: 1979-6

Media Info

  • Pagination: 168 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00308481
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-79- 51 Final Rpt., FCP 34D1-132
  • Contract Numbers: PO 4-1-0195
  • Files: TRIS, ATRI, USDOT
  • Created Date: Apr 22 1980 12:00AM