What is Pressure Grouting?
Pressure Grouting is a method of foundation and sinkhole repair. It can be called by a number of different names, such as, Slurry Grouting, Shallow Grouting, Pressure Grouting, Void Filling, Mudjacking and Slabjacking. The process refers to pumping a cement-grout mixture into sunken portions of concrete with the objective of either raising the sunken concrete or filling the voids between the bottom of the slab and the fallen soils.
First, specially designed 1.5 injection rods are pushed, drilled, or jetted down to depth. Then the highly mobile fluid cement-grout mixture is pumped into each point from five to ten feet below the structure. The rods and are extracted while pumping to allow the grout to spread and flow throughout the weak soils easily filling any loose zones voids. The strength is restored by recreating contact between the slab and soil layer again. Radial points are topped off and the injection points are covered. During the installation process the structure is constantly monitored for movement with our laser level monitoring systems.
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