Slab Raising (Mudjacking)
Slab raising, also known as mudjacking, is used to help repair existing slabs that have undergone settlement due to underlying unsuitable soils. Slab raising involves coring a series of localized holes in the slab and pumping grout under pressure until the slab returns to its original level. In many cases, the repaired slab functions with minimal to no future settlement. However, since slab raising only addresses the resulting symptom (i.e. slab settlement) and does not correct the underlying unsuitable soils, there is the risk that the soil and slab could settle again over time. If needed, ground improvement methods such as Compaction Grouting can be considered as a permanent solution to directly address the unsuitable soils.
