A cement-bentonite (CB) slurry cut-off wall is a variation of the slurry wall process that is used to create an underground barrier to stop the lateral flow of groundwater and other fluids. Because of the relative simplicity of the construction process, the CB technique might be chosen over other types of slurry cut-off walls in situations with poor access or poor subsoil conditions.
The characteristics and engineering properties of CB slurry are generally not well understood and are poorly documented. This paper documents a case study where enough testing was done to draw significant conclusions.