Erosion control Blankets  are made of coconut coir  with photodegradable or biodegradable top and bottom grids stitched up together as forming a sandwich. Thickness of the coir layer changes according to the specified applications. Top and bottom layers holds  coir fiber with the help of stitched yarn. These erosion control blankets have a life time of 5-10 years.

The ultimate erosion control measure is permanent vegetation. Erosion Control Blankets are designed to augment the natural processes, by protecting soil, seed, and fertilizer until vegetation is firmly established.

These products have been developed for extreme slopes, high-discharge channels, and applications requiring permanent protection and vegetal reinforcement. Due to increased public environmental awareness and rising costs of repairing erosion damaged sites, erosion control have become serious considerations on all potentially affected projects. Construction sites with un-vegetated steep slopes and/or surface drainage ways are prime targets for erosion. Each Erosion Control Blanket is designed for a specified range of erosion control and revegetation conditions considering soil and environmental conditions. 

Main advantages of Erosion Control Blankets

• Prevent seed/soil loss.
• Reduces run off velocity.
• Reduces run off.
• Reduces top soil disturbance and top soil loss.
• Moderates moisture.
• Moderates temperature.
• Creates micro climate to promote faster seed germination.
• Prevents soil compaction and crusting.
• Resists wind and rain shear forces.
• Suppresses weeds
• Biodegrades to act as fertilizer.
• Act as a mulch.
• Increase the microbial activities.

Product Specifications

	Double Jute Coir Blanket (JJ)	Coir with Jute net both side stitched together with jute thread. Size of the blanket could be changed according to the buyers specifications. For slopes of 1:1 or greater, where water velocity is less than 14 ft/sec
	Double synthetic Coir Blanket (PP)	Coir with Polypropylene net both side stitched together with polypropylene thread. Size of the blanket could be changed according to the buyers specifications. For slopes of 1:1 or greater, where water velocity is less than 14 ft/sec
	Top Jute Bottom Polypropylene Coir Blanket (PJ)	Coir with top Jute bottom polypropylene net stitched together with polypropylene thread Size of the blanket could be changed according to the buyers specifications. For slopes of 1:1 or greater, where water velocity is less than 14 ft/sec

Machine Technology

The Erosion Control Blanket Production Line (8 ft to 16 ft wide) has many new and improved features and is used for the production of Erosion Control Blankets,  from  coir fiber.

The production lines are custom-built according to individual requirements and vary in size and layout and added accessories.

Applications

Coir erosion control blankets are used in all soil bioengineering works where natural vegetation is rare.
Slope stabilization	Stream bank stabilization
Channel lining	Road side protection

Installation

Site preparation 

 Proper site preparation is essential to ensure complete contact of the geotextile with the soil.

The installation site shall be prepared by clearing, grubbing, and excavation, compacting or filling the area to the design grade.  This includes removal of topsoil and vegetation.

Grade and shape area of installation.

Remove all rocks or other obstructions.

 Prepare seedbed .

Incorporate amendments, such as lime and fertilizer, into soil according to soil test and the seeding plan.

Seeding:

INSTALLATION 

The Erosion Control Blanket shall be placed in complete contact with the soils without wrinkles or folds and anchored on a smooth graded surface.   

The Erosion Control Blanket shall be placed with the machine direction parallel to the slope. For streambank and channel protection the Erosion Control Blanket shall be placed with the machine direction parallel to the direction of water flow and perpendicular to wave action.

Adjacent Erosion Control Blankets shall be joined by overlapping and anchoring.  

Care shall be taken during installation so as to avoid damage occurring to the Erosion Control Blankets as a result of the installation process.  Should the Erosion Control Blankets be damaged during installation, a material patch shall be placed over the damaged area extending   (3.0 ft) beyond the perimeter of the damage.

 The Erosion Control Blanket placement shall begin at the crest and proceed down the slope. 

 Anchoring: 

1.        U-shaped wire staples, metal geotextile stake pins, or triangular wooden stakes can be used to anchor mats to the ground surface. 

2.        Blankets shall be stapled sufficiently to anchor blanket and maintain contact with the soil. 

 Field monitoring shall be performed to verify that the placement does not damage the Erosion Control Blankets.