Earlier in ancient times, the textiles were used to support the foundations of the great pyramids. But they use it on the roadways to support and separate the different soil layers from one another. So, geotextile currently supports many of the civil engineering applications which include the roads, dams, railroads, canals, construction sites, etc. The various properties are namely mechanical, hydraulic and chemical. The fabrics come in three basic forms: woven, non-woven, and knitted.http://www.asntegeosynthetics.com/geomembrane/