Coir Geotextiles

Woven geotextiles

Three types of woven geotextiles are currently being manufactured. (a). Coir mesh mattings of two shaft (b) Coir woven fabrics with loop construction. (c) Coir bags made with latex backed coir matting. Coir mesh mattings of different mesh sizes are most established coir textiles. Mesh mattings having different specifications are available under quality code numbers H2M1 to H2M10. These qualities represents coir textiles of different mesh sizes ranging from 1/8’’ to 1’’. The selection of geotextile for a particular slope depends upon the type of slope, soil condition and vegetation. If the slope is steep, the mesh size will be closer. The decorticated fibre/bristle fibre spun on machines can also be woven as geotextiles. Since colour of yarn is not a criteria for geotextile applications, the brown can be better utilized to produce coir geotextiles at a cheaper rate. This will pave way for manufacture of value added products from brown fibre.

Grades: Grade 1 – Having mass of 400gm/m²

Grade 2 – Having mass of 700gm/m²

Grade 3 – Having mass of 900gm/m²

Non-woven geotextiles

Several types of non woven geotextiles exist. Most non woven mats are made from loose fibers, which are interlocked by needling or rubberizing. Non-woven mats are available in several dimension or in custom sizes. They have a minimum thickness of two mm. The non-woven geo textiles are categorized into three groups. (a) Coco logs (b) Coir fibre beds (c) Coir needle felts.

Product Specification of Coco-beds

Product Specification of Coco-Logs are:

Advantages of coir geotextiles

Among the natural fibres available, coir is the ideal choice for a geotextile material. Experimental studies conducted have proved that while cotton and jute degrades within 6 months coir retains its 20% strength even after one year. Other advantages of coir are:

• It is 100% natural
• It is biodegradable, still last minimum for 2 seasons
• It provides excellent micro climate for plant establishment and growth
• Easy to install
• Available in plenty
• Economical.

Woven coir geotextiles used for slope stabilization and in a number of other civil engineering practices. The mesh effect is obtained by suitable positioning the wrap and the wept. Geotextiles form a natural covering for the earth, especially in places that are particularly prone to soil erosion, embankments and mountainous regions.

Popular varieties of Geotextiles are 400gm/m², 700gm/m² and 900gm/m² coir geo rolls or coco logs, Needled felts, erosion control blankets (nonwoven coir felt) in different sizes

Coir geotextile or coir bhoovastra is extremely useful in protecting the slopes from soil erosion, while enabling lush vegetable growth.

Some unique advantages

Faster binding of soil

Excellent air and water permeability

Holds the seeds and saplings vegetation

Degrades owes a period of time

Eco friendly and non- polluting

Water course protection including stream ban protection

Separation application in rural roads, railways, parking and storage areas.

Agricultural and horticultural application like mulching, anti-weed, vegetable seeding etc

Forestry vegetation

Mine site reclamation

Landscaping

Agriculture and Horticulture engineering industry

Soil stabilization

Ready to use lush green natural lawn can be made out of coir geotextiles and coir pith

Geotextiles can regenerate the exposed rock patches.