Slurry Wall

Definition: A slurry wall is a barrier preventing underground water seepage. Slurry walls are non-structural elements used in dams, levees, tunnels and where deep foundations are to be used. A slurry wall is built by a clay-like mix that filles a trench exerting pressure against the narrow gap, and preventing the collapse of the wall. Slurry placed in the trench is typically a mixture of bentonite and water combined in a mixer. The slurry is pumped directly from the mixer through a pipe into the trench