Concrete Leveling Products | Mudjacking PolyLevel™
This concrete leveling product is a slurry of liquid grout (which can include dirt, Portland cement and sand) that is pumped under a sunken slab to force it upwards by hydraulic pressure. Large holes are drilled in a sunken slab to provide clearance for the pumping nozzle. Care must be taken to prevent messy spillage through gaps and cracks.