the coir institute south africa - the eco-friendly solution
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coir eco-friendly industrial solutions

Coir is a 100% organic fibre, from a renewable source…the coconut husk. Naturally resistant to rot, moulds and moisture, it needs no chemical treatment. Hard and strong, it can be spun and woven into matting. They also have the right strength and durability to protect the slopes from erosion,while allowing vegetation to flourish. They can dissipate the energy of flowing water and absorb the excess solar radiation.
coir geotextiles are the perfect eco-friendly solution
on-site applications for coir geotextiles
coir geo-textiles used for material separation

A strong and flexible coir geotextile is placed between different layers in the construction preventing migration and mingling of materials, yet allowing free movement of water

Separation is the basic use of geotextiles and is widely practised in road works and railway constructions.
coir geo-textiles used for filtration
coir geotextiles are widely used for filtration in road works and railway constructions as well as coastal protection
The characteristic opening size of coir geotextiles is designed to retain particles while allowing free movement of water, making it possible to separate two layers during intense hydraulic activity.
coir geo-textiles used for drainage
coir geotextiles are widely used for drainage in earth and construction works
Excess water is drained off the construction by flowing in the plane of the geotextile.
coir geo-textiles used for protection
When placing a coir geotextile on both sides of a waterproof membrane, the thickness and strength of the geotextile protect the membrane from puncture
Geotextiles are widely used for protection in waste disposal systems and tunnel constructions to ensure the integrity of a sealing material (e.g. geomembrane) when fill material and/or loads are applied
two shaft woven geotextiles

Two shaft woven geotextiles are used primarily for erosion control; this is the simplest form of geotextiles.

Available in 10 varieties with fixed quality specifications of international standards
Which product is right for which application depends on five criteria:

  • Rainfall
  • Type of soil
  • Slope
  • Climate
  • Purpose for use – (just a covering or revegetation)
coir erosiuion control blankets coir non-woven erosion control blanket
coir mesh-matting coir non-woven erosion control blanket
stages of coir geotextile installation for erosion control
stage one of slope regeneration using coir matting
stage two of slope regeneration using coir matting
stage three of slope regeneration using coir matting
stage four of slope regeneration using coir matting
stage five of slope regeneration using coir matting
coir geotextile applications
  • Water course protection including stream bank protection
  • Shoreline stabilization
  • Storm water channels
  • Slope stabilization in railway cutting and embankments
  • Water course protection
  • Separation application in rural roads, railways, parking and storage areas
  • Reinforcement of rural unpaved roads, temporary walls Providing sub base layer in road pavement
  • Filtration in road drains and land reclamation
  • Containment of soil and concrete as temporary seeding etc.
  • Concrete column curing
  • Fly ash dump waste protection and greening Forestry revegetation
  • Highway cut and fill slopes
  • Control of shallow mass waste and gully erosion
  • As sound barrier
  • UV protection for under earth crops
  • Roof top greening
  • Protection from wind erosion
  • Storm shuttering
  • Mulching, antiweed, vegetative water channels
  • Mine site reclamation
  • Dune rehabilitation
  • Wetland environments
  • Landscaping
  • Plant and tree protective systems
  • Mud wall reinforcement
  • Soil stabilization
Why use coir geotextiles?

Coir Geotextiles offer:

  • 100 % Natural fibre, extracted from coconut husk
  • Adds organic material to soil
  • Promotes vegetative growth
  • 100% Bio-degradable and environmentally friendly
  • Tough, durable, versatile and resilient
  • High tear-strength resistance
  • Easy to install / maintain / patch-up.
  • Follows the contour of the soil surface.
  • Hygroscopic properties
    (absorbing or attracting moisture from the air)
  • High tensile strength

Coir geotextiles – the natural erosion controller

Coir geotextiles are classified as woven, meshes and nets and non woven, as the blanket held by coir threads.

Coir geotextile nets have varying densities depending on their application, but as a whole they serve as slope stabilization agents prior to revegetation.

Coir geotextiles promote new vegetation by absorbing water and preventing top soil from drying out. Coir geotextiles absorb solar radiation just like natural soil, and unlike geosynthetic materials, it provides good soil support for up to three years, allowing natural vegetation to become established.

The greater the geotextile density, the steeper the embankments it can be utilized on. Applications have included ski slopes and bottom reinforcing material in water courses. (Under water the degradation of coir is slower).

Over a period of time, coir which is ecofriendly and biodegradable, completely disintegrates leaving only humus.

dense coir matting utilised for erosion control on steeper embankments
coir blankets can be succesfully utilised in controlling even the steepest of slopes from erosion
due to the geo textiles natural ability for water absorption, revegetation in low rain areas is a simple process
Seeding or planting with coir matting is a simple process due to the blankets natural ability to retain moisture and protect from the suns radiation
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