Mud jacking provides a quick and cost effective solution to repair settling concrete slabs. The concrete slab may be put into service immediately after completion, with no wait time. Our commercial experience of over 15 years includes warehouses, schools, churches, and government buildings.
Compaction grouting or Low mobility grouting is when a stiff grout is injected under pressure into the soil. The grout expands in the soil forming a bulbous shaped grout mass around the point of injection. The soil surrounding the injected grouted is displaced and compacted. The grout material does not penetrate into the pores of the soil and cracks in the soil are not formed. During the compaction grouting process, Keystone Foundation Repair monitors the grout pressure, grout volume and possible movement at the surface. Depending on the requirements, the grouting process is terminated when a maximum grout pressure is reach, a maximum grout volume is reached or when the desired uplift a structure is achieved. The compaction grout process may be used to improve sandy soils, especially in cases where loose sandy soils are encountered. Compaction grouting is also especially useful in sinkhole environments. Compaction grouting can be used in fine-grained soils to enable the installation of higher strength elements and increase bearing capacity of soils. The process ultimately increases the load bearing behavior of the existing soil.