Hydraulic mulch is a type of erosion control measure used to stabilize soil and prevent erosion in various applications, such as construction sites, highways, slopes, and disturbed areas. It consists of a mixture of water, mulch fibers, tackifiers, and other additives that form a slurry-like substance.
It is typically sprayed onto the soil surface using specialized equipment, such as hydroseeding machines. The slurry is evenly distributed, forming a protective layer over the soil. The mulch fibers in the mixture create a porous blanket, which helps retain moisture, and prevent soil erosion. It acts as a barrier against forceful raindrops, reducing the impact of water on the soil surface.
Hydraulic mulch often contains seeds or can be combined with them. The mulch layer provides a favorable environment for seed germination, protects the seeds from being washed away, and improves seed-to-soil contact, increasing the chances of successful vegetation establishment.
The mulch slurry forms a bonded matrix as it dries, creating a stable surface that helps prevent soil particles from being dislodged by stormwater. This stabilization minimizes sediment runoff and the formation of rills and gullies. The mulch fibers used many times are typically derived from organic materials like straw, wood, or coconut coir. As the mulch breaks down over time, it adds organic matter to the soil, improving its structure, fertility, and water-holding capacity.
The specific composition of hydraulic mulch can vary depending on the manufacturer, project requirements, and environmental conditions. It is important to follow the recommended application rates and guidelines provided by the manufacturer to ensure effective erosion control.
Hydraulic mulch is a popular choice for erosion control because it offers efficient and cost-effective soil stabilization allowing effective vegetation establishment, helping to prevent erosion and promote sustainable stormwater management practice.
KCI can help you determine whether your site is secured, ready, and stabilized for construction. Call us today at 888-346-7779.
