Deep Compaction Grouting

Almost all types of soil can see improvement with Compaction Grouting. Compaction Grouting is used for soil stabilization, soil densification, and void filling during founation repair. This method is used to fill the voids and weak zones in the ground under your dwelling. While this only provides indirect support for you home, it is often necessary and effective. The main purpose is to increase the load the soil can bear and by adding material to the lower soil layers.  First, steel casings are installed beneath your home by a limited access drill rig to the adequate depth. Then, a thick Cement-Grout mixture is pumped into the ground under high pressure, using hard pipe and a hydraulic grout pump capable of achieving 800psi minimum and pumped to a depth of 300 vertical feet. The soils are compacted, as the cement-grout mixture penetrates the soil. The thick cement mixture is formulated to remain tight within the soil and form compaction “balls”, causing the soil to be compacted, filling in the voids. The grout seals off the top of the limestone layer first and as the casings are removed section by section the compaction grout increases soil density layer by layer. Finally, the casings are removed from the ground and taken back to the shop.