Erosion control medium
AssigneeTerra-Mulch Products LLC
InventorDoris Ericka Lougheed
Life of this patent
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Abstract
In one aspect there is provided an erosion control medium formed from a blended mulch product which can be mixed with water and spray-applied to a ground surface to form the erosion control medium, comprising: about 75% to about 92% by weight ligno-cellulosic fibers; about 1% to about 10% by weight substantially straight synthetic fibers; and a tackifier; wherein the substantially straight synthetic fibers maintain their substantially straight form in the blended mulch product and the erosion control medium. Also provided are slurries in which the blended mulch product is mixed with water to produce the slurry, the slurry is spray-applied to a ground surface and the slurry dries on the ground surface to form an erosion control medium.
Claims72
An erosion control medium for reducing erosion of a ground surface, formed from the dried spray-application on the ground surface of a slurry comprising a blended mulch product and water, the erosion control medium comprising:
- (a) ligno-cellulosic fibers;
- (b) substantially straight synthetic fibers each having a straight ratio (Dnot:Dmax) of at least about 3:5 to about 1:1;
- wherein Dmax represents a maximum potential distance of a particular synthetic fiber having a first end point and a second end point, with the first and second end points located at opposing ends of an elongated portion of the particular synthetic fiber, the maximum potential distance being measured along the elongated portion of the particular synthetic fiber when the particular synthetic fiber is completely straight;
- and wherein Dnot represents a notional shortest distance between said end points;
- and
- (c) a tackifier;
- wherein the erosion control medium forms a substantially homogenous open weave matrix on the ground surface and wherein the presence of the substantially straight synthetic fibers does not increase a dry tensile strength of the erosion control medium as compared to an erosion control medium without the substantially straight synthetic fibers.
An erosion control medium for reducing erosion of a ground surface, formed from the dried spray-application on the ground surface of a slurry mixture comprising a blended mulch product and water, the erosion control medium comprising:
- (a) about 80% to about 90% by weight ligno-cellulosic fibers;
- (b) about 1% to about 7% by weight substantially straight synthetic fibers;
- and
- (c) a tackifier;
- wherein the erosion control medium forms a substantially homogenous open weave matrix on the ground surface and wherein the presence of the substantially straight synthetic fibers does not increase a dry tensile strength of the erosion control medium as compared to an erosion control medium without the substantially straight synthetic fibers.
Dependencies are inferred from the claim text.