Foundation Repair - Pumping Grout

Pumping the grout should begin at the lowest point of the slab, on most jobs. At the areas in which the grout will do the most lifting, a heavier grout is used. The operator moves from hole to hole as the slab rises about inch to inch. He then moves back and repeats the process.

Additional holes may have been drilled as "support" holes, to be filled in order to support the slab as it rises. These holes usually are filled with a less dense, more fluid grout, so it flows easily into the smaller voids.

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