Landfill Closure & Cover High Solid Erosion Control Matrix
in Colorado

High-altitude construction in Colorado exposes thin, rocky, and highly alkaline subsoils. The primary failure mechanism for slope stabilization here is freeze-thaw heaving; extreme diurnal temperature fluctuations expand and contract the topsoil, destroying the mechanical bond of standard brittle tackifiers. Coupled with sudden, high-velocity snowmelt runoff, unbonded seed is rapidly stripped from the slope before germination. Success in this alpine environment requires a highly cross-linked, thixotropic matrix that can flex with the soil's thermal expansion without shattering, ensuring seed protection until the narrow high-altitude germination window opens.

Operational Constraints for Landfill Closure

Daily and intermediate landfill covers face severe wind erosion, off-gassing, and strict regulatory leachate controls. Loose soils blow offsite or wash into drainage systems, instantly triggering compliance violations. The objective is to seal the surface without adding excessive weight or moisture to the waste mass. You need a high-viscosity hydraulic hydro-cap that forms a durable crust over the refuse. The polymer must lock in dust and aggressively repel rainwater to prevent it from infiltrating the cell and increasing the site's expensive leachate treatment volume.

Meeting CDOT Section 212 Specifications

OHRA ViscoLok & GreenTack anchors seed and mulch directly to the subsoil, providing the rain-fast shear strength required by CDOT Section 212. Its microplastic-free botanical hydrocolloid network forms a 3D matrix. It resists high-velocity storm runoff and keeps synthetic toxins out of the watershed.

The matrix prevents "fisheye" lumping inside your hydroseeder pump. This stops pump cavitation and reduces friction head loss. You maximize your tank's spray payload and eliminate constant agitation adjustments on the job site.