NON WOVEN GEO TEXTILES are permeable geosynthetics made of nonwoven materials used with soil, rock, or other geotechnical-related material as an integral part of a civil engineering project, structure, or system. They are frequently made from synthetic polymers such as polypropylene , polyamide, and polyester, as well as natural fibres such as jute, sisal, and coir.

APPLICATIONS-Roads and other trafficked areas,

Railways, earthworks,

Foundation and retaining walls,

Drainage systems,erosion control, reservoirs

Dams, canals, tunnels and underground Structures, solid waste disposal,liquid waste containment, and asphalt reinforcement.

FUNCTIONS

Their primary functions include filtration

To prevent soils from migrating into the adjacent material, such as drainage aggregate, while allowing water to flow through the system), drainage.

To allow water to drain from or through low-permeability soils), separation (to separate the two dissimilar materials and prevent them from mixing).

To increase shear strength of soils), and erosion control (to minimise the movement of soil particles due to flow of water).

Therefore, there are a series of standard test methods defined in international and national standards to characterise its properties in relation to those five aspects of performance.

Geotextiles are characterized by the following properties.

 Tensile Strength and Tensile Starin

 Tear resistance.

 Water permeability vertical to plane.

 Water permeability in plane.

 Opening size.