Geotextiles in Unpaved Roads: A 35-Year Case History

This article reports on findings when geotextiles buried for 35 years in unpaved roads were exhumed and the sites they occupied studied. Originally intended to test the comparable performance lives of various geotextiles, this experiment also yielded information on how they performed despite lack of adequate cover and, by current standards, an inadequate polymer stabilization package when they were originally manufactured. The purpose of geotextile separation is to eliminate soil subgrade pumping and stone aggregate penetration. The site near Smyrna, Delaware, was used by Dupont to study the performance of non-woven fabrics. The unpaved road was constructed specially for the research, and its specifications are given. The fabrics were used with stone base courses in the hopes of convincing the road construction industry of their worth. The tests were designed to illuminate many components and test for a wide range of potential outcomes. Site properties and soil tests, along with geotextile tests, are listed in detail. Conclusions about the various fabrics are also presented.


  • English

Media Info

  • Media Type: Print
  • Features: Figures; Tables;
  • Pagination: pp 26-28, 30-33
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01103859
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Jun 27 2008 2:36PM