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Pressure grouting is an economical means to correct existing or potential geological and structural problems. Pressure grouting is the injection of a liquefied material, under pressure, into voids, cracks, or even between bearing materials and an existing structure.

A cementitious slurry (Grout) is injected into the void at high pressure. This provides load bearing continuity between the concrete slab and the sub-grade soil. It is referred to as slabjacking when lifting or leveling is involved, or simply pressure grouting where void filling is the sole objective.

In the slabjacking process, instead of replacing the concrete, a cement slurry is pumped under the concrete. This process "lifts" the sunken and uneven surface back into its proper position.
Performed properly, slabjacking can not only bring the concrete up to grade, it can also eliminate costly and irritating water problems by filling hidden cavities under the concrete and diverting water away from the foundation.

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