Slurry characteristics and the final in-place properties of slurry cut-off walls are described, including discussions of bentonite hydration, cement-bentonite slurry behavior, and the permeability, strength and compressibility of completed walls.
A distinction is drawn between technical and economic factors in the construction process. The recommendation is made that technical specifications should isolate factors important to the quality of the finished product and give the contractor the widest latitude in economic decisions.