
222 Textiles for Industrial Applications
© 2008 Taylor & Francis Group, LLC
9.2.2 Functions of Geotextiles
Geotextiles have numerous application areas in civil engineering including
pavements, ltration and drainage, reinforced embankments, railroads, ero-
sion and sediment control, moisture barrier, silt fencing, and earth-retaining
walls. They always perform one or more of the earlier functions when used
in contact with soil, rock, and/or any other civil structures. The basic func-
tions of geotextiles are as given in the following sections.
9.2.2.1 Separation
Separation is the process of preventing undesirable mix-up of two dis-
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