Nonwoven geotextiles are permeable geosynthetics made of nonwoven materials used along with geotechnical material (soil, rock, etc.) on the integral part of a civil engineering projects. It’s produced mechanically or chemically or by heat-bonding fibres together to form stable fibre network. Nonwoven geotextiles are frequently made polymers from synthetic material like polypropylene, polyethylene, polyamide, polyester, etc. The polypropylene fibre dominates in the geotextile application, cause of its low cost, low specific gravity and strength. But nonwoven geotextiles also made from natural fibres (jute, sisal, coir, etc).
In geotextiles, geosynthetics material specially nonwovens are used in the civil engineering field. Nonwovens materials are used to separation, reinforcement and as filters in the construction.
Nonwovens in geotextiles laid to form a roll and are light, easy to handle, despite its strength and toughness.
It has higher flexibility and movement than woven geotextiles. As a result, it is ideal for use in separation. The thickness and puncture resistance of nonwoven geotextile provides cushioning and protection to geomembranes in the areas of landfill, pond, drainage, dams, river canals and costal work, embankments, and mining design.
Nonwoven geotextiles are also used in applications where filtration and drainage are required because of its smaller opening sizes and ability to filter smaller particle sizes which allowing water to pass. It is ideal for separation in paving applications in both asphalt and concrete roadways. In concept of barrier application, the nonwoven material can act as a barrier to water infiltration.
Non-woven geotextiles satisfy the qualities needed for demanding environments. Cause, it is strong, tear and puncture resistance, lightweight and tolerant to fluctuations in the temperature fluctuation.
Quick developments in infrastructure is led to huge demand for nonwovens geotextiles in water conservancy, drainage, dams, river canals and costal work, embankments, road, highway, motorways, railway track, airfields, sports fields, and many sustainable other projects. The unique flexibility of nonwovens used in geotextile to makes suitable for use in securing landfill infrastructure and in drainage, in filtration applications in textile.
Nonwoven geotextiles manufactured from either continuous filaments or staple fibres. Continuous filaments and staple fibres are used to separation, reinforcements, filtration, drainage, moisture barrier, etc for roads and railways off shore land reclamation, road side, rail side, river and canal banks and embarkments. Non-woven have some unique functions in geotextiles include filtration, drainage, separation, reinforcement, and erosion control, etc.
These key functions may be defined as follows:
According to the European standards, requirements of geotextiles in the application areas are defined by: roads, railways, earthworks, retaining walls, drainage systems, erosion control, dams, canals, underground structures, solid waste disposal, liquid waste containment, etc. The chart below can help you to find the various application area of nonwoven geotextiles:
Available in various GSM from 80-500gsm with the roll size of 2.25mtr width x 100mtr Length, i.e, 225 Sqm in each roll.