New Caltrans guide for geotextiles

A new design guide for using “subgrade enhancement geotextiles” (SEG) in road construction has been produced by the California Department of Transportation (Caltrans).

The 18-page document is intended to assist pavement design engineers in five areas:

1. What are SEGs and what functions do they serve.
2. How to determine if geotextile materials are needed for a project.
3. How to determine the material’s engineering properties.
4. How to install and how to construct new pavement using geotextiles.
5. Calculating cost savings, in the amount ofaggregate, by using geotextiles

For more information and to examine this guide:
www.dot.ca.gov/hq/esc/Translab/ope/Subgrade-Enhancement-Geotextile-Guide.pdf.