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Settlement occurring on garage floors, sidewalks, porches, and other slabs is often caused by water, erosion, pour compaction, vibration, breakdown of organic material, and other factors. New construction and existing structures are affected, but can be raised back to original elevation.
Another useful but more involved fix is a Helical slab repair bracket. Common applications in commercial and industrial slabs with heavy traffic or heavy machinery loads. Slab repair brackets are also used in areas where pressure grouting has failed due to continuing subsidence. When stabilizing uneven or damaged floors. Bolt adjusts through cup fitting on top of anchor so channel lifts floor.
Slab repair piles are laid out according to the construction of the slab and the location of the failure.
It is also common to fill the voids after correction with pressure grouting.