What is Concrete Raising?

Concrete Raising is a process that uses a cementitious slurry to raise slabs and fill voids beneath them. This process of raising concrete with concrete results in a repair that is impervious to water and therefore a more permanent fix. The cementitious slurry is pumped under pressure into small holes drilled though concrete slabs. The “slurry” displaces air pockets, water or water saturated materials, fills all void areas under the slab, raises the slab, and leaves a firm permanent subgrade.

How is Concrete Raising different from “mudjacking”?

“Mudjacking”, as the name implies, utilizes a mixture of topsoil, water and admixtures which is hydraulically pumped into a hole drilled in a slab of sunken concrete. In as much as the material being used to raise the slab is the same material that is under the slab, erosion over time typically does not result in a long-term fix. Caution: Some mudjackers throw a minimal amount of cement in their mixture and call their process concrete raising. Buyer Beware!!

What are the advantages of Concrete Raising over replacement?