Cement grouting or permeation grouting is the injection of flowable cement-based grout under pressure into the ground to improve strength, reduce permeability, and stabilize loose soil. Cement grouting is performed by drilling holes into the area to be grouted to intercept cracks, voids, joints, fractures, and fissures. A grout mix made up of neat cement, water, and special additives is pumped under pressure through the drilled holes in order to permeate the surrounding ground.
Cement Grouting Applications:
Stabilization of Loose Gravels and Shot Rock
Grouting of Tunnel Lining Voids
Fractured Rock Treatment for Dam Foundations
Sealing and Cut-Off Grouting
Compaction Grouting is used in weak soil strata to stabilize it by displacing the soil in-situ, resulting in a denser and improved ground condition. During compaction grouting,a very stiff grout is pumped through a driven or drilled casing in stages as the casing is removed, forming grout bulbs, which displace and densify the surrounding soils.
Compaction Grouting Applications:
Stabilize Existing Foundation Soils