Slabjacking (mudjacking) is defined as "grout pumped
under pressure through
small holes (1.5 inch diameter) to raise faulty or sunken
concrete". The holes are strategically placed to ensure proper
lift. Our exclusive non-shrink cement grout is pumped under
the sunken concrete at the rate of 1 cubic foot per minute. This
completely fills any voids, and raises the concrete to it's original
height. After the lifting is complete, we clean the area of
excess drill tailings and grout, then re-cement the holes with our
custom color matching system. Most work is completed in less
than 4 hours.