Sites

Geotextiles (Popularity: )
http://www.na.fs.fed.us/spfo/pubs/stewardship/accessroads/geotextiles.htm
Article discussing the technical aspects of geotextiles in road construction. Includes separation, filtration and reinforcement aspects together with drawings .

Creep and Stress Relaxation of Geogrids (Popularity: )
http://www.ce.udel.edu/~montri/publication.html
Technical paper on the long-term behavior of geogrids . Includes test procedures, results and references .

Technology Exchange Newsletter (Popularity: )
http://www.cts.umn.edu/T2/TechExch/1999/JulSept/070309.html
Discusses the use by the forest services of geotetextiles for low volume road use .