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Layfield has many different types of erosion & sediment control products to suit almost any application.
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Erosion and Sediment control has become a global issue in the last decade and has prompted regulators to institute requirements for the control of soil loss from construction sites. Regulations such as the National Pollutant Discharge Elimination System (NPDES) in the United States and the Environmental Construction Operations Plan ECOPlan in the province of Alberta, Canada have increased the need for Erosion and Sediment control products. Layfield carries a full line of Erosion and Sediment control products to meet the needs of the regulations in your area. Erosion, or the loss of soil, can result in extensive damage to soil structures and can lead to expensive repairs. Erosion can occur on any site where soils are exposed and can lead to large-scale erosion failures. Usually, rain will cause the majority of erosion damage and areas with high rainfall and erodable soils will have the most pronounced erosion problems. Geosynthetics can be used to prevent erosion in most applications. Layfield provides a number of unique products for erosion control. Undisturbed soil is not usually prone to erosion as natural vegetative covers prevent loss of soil. Once soil is disturbed however, the risk of erosion is high. During construction it is important that steps be taken to control the loss of silt and sediment from open soils. Although silt and sediment control is very important, it must be understood that erosion control is much more effective. Once construction is complete, ensure that erosion does not take place before vegetation has had a chance to establish itself.
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The basic use of erosion control blankets is to cover bare soils until vegetation can establish itself. Erosion Control Blankets (ECB’s) provide excellent coverage and protection of bare soils from precipitation and wind erosion. The ECB provides an ideal microclimate for seed germination. Permanent erosion protection is achieved once the vegetation is established. The ECB biodegrades into mulch after a suitable protective period. ECB’s are available in many styles to protect most combinations of slope pitch and length, and in short-term and long-term styles. Permanent erosion control through the establishment of vegetation is the most common application of erosion control products and ECB’s are the most commonly used erosion control product. ECB’s are manufactured roll goods made from straw, coconut, or polymer fiber. Slopes can also be protected by other non-vegetative cover materials. A geotextile with a gravel cover, or a geo-cell with gravel infill can provide excellent, permanent, erosion control. These erosion control solutions are used where vegetative covers are impractical due to climate or other conditions. A specialized woven monofilament geotextile is available for shoreline protection applications and non-woven geotextiles are available for general erosion control use. Non-woven geotextile specifications are contained in the geotextile application. Geo-cell cellular confinement structures consist of welded polyethylene strips that form a honeycomb matrix. This matrix is filled with soil, gravel, or concrete to provide erosion protection. Geo-cell reinforces the fill material and confines it allowing fill materials to be placed in areas such as steep slopes.
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There are two basic styles of controlling erosion. You can either stop it before it starts, or you can deal with the consequences after the erosion takes place. The most effective method is to stop erosion before it starts. That means that you need to cover all the soils at a project site so that rain (or wind) will not move the soil particles. Keeping all soils covered is difficult during construction. Construction exposes bare soil to rain and wind and usually leads to erosion. If the area is small then a tarpaulin can be used to cover the open soil during construction. If the area is large then we might have to accept that erosion is going to occur during construction and take silt and sediment control steps to deal with run-off. Once construction is complete we need to reconstruct the soil cover as quickly as possible to prevent further erosion. This erosion control application is intended to discuss the erosion control of soil on land, usually accomplished at the completion of construction. There is a separate section that discusses silt and sediment control, and another section that discusses erosion control in stream and channel applications. Bio engineering is another erosion control technique that uses vegetation to provide permanent erosion protection.
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The matrix below provides basic selection of ECB materials based on the slope gradient and length of slope. Select the ECB that most closely matches your erosion control requirement.
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Erosion Control |