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Cut-Off Walls
The traditional liquid slurry trench method is well known for creating hydraulic barriers and has been used for decades to stem the flow of subsurface water and water-borne contamination. In many cases, a backfill material with more structural strength is desired, particularly where subsurface flow rates are high or in earthen dams or dikes where loads must be supported.
At 60-80% solids by weight (depending on formulations), AquaBlok behaves much like the crushed stone aggregate that makes up its core composition. As a pre-mix of stone and high-grade, Wyoming-derived bentonite, the product balances extremely low permeability (10-8 to 10-9 cm/s) with unparalleled structural integrity. An added benefit of this solids-rich blend is ease of installation. Material can be simply gravity dropped into a trench, even if water is actively filling the cavity.
