PERFORMANCE OF GEOTEXTILE SEPARATORS. FINAL TECHNICAL REPORT

This research involved field investigations and laboratory testing to evaluate the properties and overall performance of geotextiles from eight different locations in eastern and central Washington. Both nonwoven and woven geotextiles were exhumed from the roadways at the eight locations, and samples of the geotextile were brought to the laboratory for index strength and permitivity testing. Samples of the base course and subgrade soils were analyzed for grain-size distribution. The results of the investigations and testing indicated that all of the geotextiles performed the separation function adequately, although three of them were not installed directly against the subgrade soil as intended. Damage to the geotextiles varied considerably with the type of material and the installation conditions; however, this damage was not shown to have affected the performance of the separator.

  • Record URL:
  • Corporate Authors:

    University of Washington, Seattle

    Seattle, WA  United States  98195

    Washington State Department of Transportation

    Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
    Olympia, WA  United States  98504-7300

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Holtz, R D
    • Page, M W
  • Publication Date: 1991-4

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 145 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00625004
  • Record Type: Publication
  • Report/Paper Numbers: WA-RD 280.1
  • Contract Numbers: GC8719, Task 14
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Sep 28 1993 12:00AM