A slurry of mud and cement is pumped under the slab (depending on the amount of lift) to fill the voids created by raising the slab. During this time, all water faucets inside the house must be turned on to keep sewer lines open in case a sewer line has broken during the jacking process. All pier areas are then backfilled with sand and top soil and plants are replaced. Any concrete break-outs are patched smooth with new concrete and the entire area is given final clean-up.
 The crew mixes soil and cement to produce the slurry. |
 A void has been created during the leveling process. |
 This is about a 3 inch void. |
 The slurry is then pumped under pressure into the voids. |
 This photo shows the slurry filling the voids around the concrete blocks and steel shims. |
 This photo also shows how the slurry is filling the voids. |
 After the voids are filled, the holes are packed with select fill and covered with a layer of plastic sheeting to prevent seeping moisture. |
 The remainder of the hole is filled with rebar-reinforced concrete. |
 The concrete patch is then smoothed with a trowel. |
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