Coir Sediment Control

Overview

KoirFence 1250 is a tightly woven biodegradable silt fence made of high strength coir

KoirFence™ 1250

Typical Applications

  • Perimeter sediment control
  • To contain windblown snow
  • Strong drain inlet protection
  • Matting for walkways

KoirFence™ 1250

Advantages

  • 100% natural and biodegradable eliminates need for removal
  • Environmentally friendly
  • Safe for wildlife
  • Easy and economical to install
  • Excellent alternative to plastic silt fence in ecologically sensitive areas
  • Excellent filtration characteristics

Coir Sediment Control Products – Koirwattle™ 6 & 9

KoirFence 1250 is a tightly woven biodegradable silt fence made of high strength coir

Coir Sediment Control Products - Koirwattle™ 6 & 9

Overview

KoirWattle™ is a flexible cylindrical module of coir fiber encased in tubular netting made of high strength coir. KoirWattle™ generally lasts two to five years and can replace silt fence and straw bales as a cost effective means of controlling erosion. It effectively traps sediments and improves water quality.

KoirWattle™ 6 & 9

KoirWattle™ 6 & 9

Typical Applications

  • Storm drain inlet protection
  • Check structure in swales and water ways
  • Forest fire rehabilitation
  • Storm water and construction run-off pollution control
  • Vineyard erosion control
  • Landscape edging
  • Alternate to silt fence for perimeter sediment control

Advantages

  • Reduce slope length
  • Slow water flow velocity
  • Reduce sheet erosion as well as rill and gully development
  • 100% natural and biodegradable
  • Cost effective
  • Easy to install in shallow soils and hard substrates
  • Safe for the environment
  • Superior filtration & durability compared to straw and excelsior wattles
  • Works as a vegetative filter
  • Blends in well with existing landscape
  • Excellent growing medium for vegetation
  • Perimeter sediment control
  • To contain windblown snow
  • Strong drain inlet protection
  • Matting for walkways

Advantages

  • 100% natural and biodegradable eliminates need for removal
  • Environmentally friendly
  • Safe for wildlife
  • Easy and economical to install
  • Excellent alternative to plastic silt fence in ecologically sensitive areas
  • Excellent filtration characteristics

INSTALLATION GUIDELINES FOR COIR SEDIMENT CONTROL PRODUCTS – KoirFence 1250

KoirFence 1250 shall be installed using 2″ x 2″ hardwood stakes at 3’ to 6’ on center. Bury the bottom edge of KoirFence in a 4” x 4” anchor trench. Tie KoirFence at top, bottom and mid-height of the wood stakes using KoirTwine or BioTwine.

KoirFence shall be placed along the slope contours to maximize ponding efficiency. Inspect and repair KoirFence after each storm event and remove sediment when necessary. Removed sediment shall be deposited in an area that can be permanently stabilized.

COIR SEDIMENT CONTROL PRODUCTS – KoirFence 1250

Technical Specifications:

Property Test Method Typical Value
Thickness ASTM D 5199 0.38 in(1.0 cm)
Mass per unit area ASTM D 5261 37 oz/sy. (1250 gms/sq.m)
Wide Width Tensile Strength MD x TD ASTM D 4595 2508×948 lbs/ft(36.6 x13.8 KN/m)
Elongation at break MD x TD ASTM D 4595 32% x 22%
Grab Tensile Strength MD x CD ASTM D 4632 345 x107 lbs(1535×475 N)
Elongation at peak MD x TD ASTM D 4632 42% x 22%
Trapezoidal Tear Strength MD x CD ASTM D 4533 337 x 115 lbs.(1500×512 N)
Apparent opening Size) ASTM D  4751 18-20 US Standard Sieve Size (0.85-1.0 mm)
Puncture Resistance ASTM D 4833 209 lbs(930 N)
Permittivity ASTM D 4491 2.72/sec
Permeability ASTM D 4491 1.06 in/sec (2.69 cm/sec)
Flow Rate ASTM D 4491 203 gal/m in/sq ft. (8.2 cu.m/m in/sq. m)
Mullen Burst Strength ASTM D 3786 >800 lbs/sq.in(>5516 KPa)
Flexural Rigidity MD x CD ASTM D 1388 1.76 x 0.60 oz-in(127 x 43 g-cm)
Standard roll size: 3′ x 100′

 

Technical Specifications:

Property KoirWattle 6 KoirWattle 9
Diameter 6.0 inch (15.3 cm) 9.0 inch (22.9 cm)
Weight per foot 1.5 lbs (0.68 kg) 3.0 lbs (1.36 kg)
Inner core  Double cleaned unsorted coconut fiber
Outer netting  High strength coir with knotted junctions
Outer netting/ Mesh opening  2”x2” rhombic shaped mesh opening
Standard sizes: 6” and 9” dia x 10’ and 20’ long

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