DETERMINATION OF THE IN SITU PERMEABILITY OF BASE AND SUBBASE COURSES

The development of a prototype in situ test device, designated the field permeability testing device (FPTD), for determination of the permeability of highway base and subbase courses is described and discussed. The research consisted of two phases. Phase I involved the development and laboratory investigation of feasible in situ permeability measurement techniques, which led to the selection of the velocity method of in situ permeability determination for futher development. Phase II involved the construction of a prototype field permeability tests device (FPTD) and an extensive program of laboratory and field evaluations of this equipment. Based on the results of these studies, it was concluded that the prototype field permeability test device (FPTD) developed during this project satisfies project objectives and provides a convenient means for the determination of the in situ coefficient of permeability of highway bases and subbases with reasonable accuracy and reproducibility. This device permits the consideration in design of saturated hydraulic conductivity (permeability) of bases and subbases and also permits the development of construction specifications for the permeability of these materials, since it makes available for the first time, a mechanism for the evaluation and control of permeability during construction. /FHWA/

  • Corporate Authors:

    West Virginia University, Morgantown

    Department of Civil and Environmental Engineering
    Morgantown, WV  USA  26506-6103

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Moulton, L K
    • Seals, D K
  • Publication Date: 1979-5

Media Info

  • Pagination: 157 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00302018
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-RD-79- 88 Final Rpt., FCP 34F1-273
  • Contract Numbers: DOT-FH-11-9060
  • Files: TRIS, USDOT
  • Created Date: Dec 19 1979 12:00AM