Slurry walls are constructed using a cement-bentonite slurry to produce a below ground low permeability barrier.
Rock grouting is normally done in fissured rock to reduce the flow of water along the joints and discontinuities in the rock.
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Compensation or fracture grouting is the injection of a cement slurry grout into the soil creating and filling fractures that then lift the overlying soil and structures.
Whether natural or man-made soils sometimes present voids that may create sinkholes. Depending on the situation, and the quality of the soils, various techniques can be adapted to provide a permanent solution.
Permeation grouting, also known as cement grouting or pressure grouting, fills cracks or voids in soil and rock and permeates coarse, granular soils with flowable particulate grouts to create a cemented mass.