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COIR EROSION CONTROL BLANKET
Introduction:
Coir erosion control blanket can be either woven or non-woven. Woven ECB is an open weave structure with large / small open mesh. Non-woven ECB is either needle punched or stitch bonded.These materials are useful in erosion control and re-vegetation on slopes less than 50 degrees or in channels, where water flow rates are between 1 and 4 m/s. The hairy nature of the yarn used for making the blanket breaks the falling raindrop into droplets, thus decreasing their erosive action. The material absorbs water, around 3 times its own weight. Coir geotextile lasts for 3 to 5 years and degrades to form humus which is useful for plant growth.
Application:
- Erosion control and slope stabilization of Hill Sides-Ski Slope.
- Protection of High embankments of Road, Railway, Water Reservoir
- Facial in reinforced earth slopes.
- Protection of River and Canal Embankments, Wave Energy Absorber.
- Creation and Protection of Dunes. Wind erosion Control.
- Re-vegetation and forestation projects.
- Restoration of ecology, wetland areas, degraded lands, landslide areas.
- As eco-friendly night covers in waste dumps.
- Landscaping Waste Dump Areas.
- Protects geosynthetic installations from exposure to UV and vandalism.
Specification:
Woven Mesh Type ECB
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Prod
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Wt. (G/sqm)
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Tensile strength Dry Kn/m
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Length X Width m
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Recommended
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Water Flow (m/sec)
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FC-400
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400
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2.0
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50X2
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=< 30 degree slope , canal lining, capping
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<2.0
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FC-700
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700
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3.0
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50X2
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30 to 40 degree slope length < 10 m, Canal lining, landfill capping
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<3.0
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FC-701
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700
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5.0
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50X2
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30 to 40 degree slopes length >10 to 25 m, landfill capping
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<3.0
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FC-900
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900
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5.0
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50X2
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Road over soft soil, Canal lining
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<4.0
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Stitch Bonded ECB
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Weight
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Width (m)
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Length (m)
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Tensile strength (klSI/m)
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Water Flow Velocity (m/sec)
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Shear Stress (kg/sq.m)
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350 - 400
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2.4
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42
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>10
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4.0
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1
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