Commercial Foundation Repair
We use polyurethane grouting, helical piles, resistance piers and chemical grouting for commercial foundation repair projects. Occasionally, if a commercial foundation repair project requires bulk void filling, we will also use cellular concrete.
Shallow Foundation Repair Solutions
We are known for our polyurethane grouting expertise when it comes to stabilizing and correcting settlement of slab foundations. From small sections of settled warehouse floors and compressor bases to distribution centers and big box retailers, we employ polyurethane grouting for commercial foundation repair to raise settled slab foundation elements with minimal disruption to operations, and only nominal addition of loading to underlying soils. Polyurethane grouting may be used in place of traditional low mobility grouting and high mobility grouting, which are sometimes referred to as mudjacking or pressure grouting.
When a commercial foundation repair project requires filling exceptionally large voids (i.e. more than a hundred cubic yards), cellular concrete can be used for bulk void filling. Cellular concrete is sensitive to vibration during installation, so it’s not always the best to use in commercial facilities which are in use during the repair.
We use single component polyurethanes to for soil modification to increase the bearing capacity and stability of non-cohesive soils. Permeation grouting using polyurethane resin grouts to greatly increase the bearing capacity of soils is a common way to help stabilize foundations which are showing initial signs of movement. In situations where settlement has occurred but the mess and disruption associated with helical piles or resistance piers is not tolerable, chemical grouting can be used to slow or stop movement with little to no disruption. Permeation grouting using expanding pre-polymers can be used to reduce water movement through soils, and therefore increase bearing capacity, and also to improve stability of soils by filling voids within the soils.
Deep Foundation Solutions
We install two types of deep foundations; helical piles & resistance piers. Helical piles are an excellent choice for new foundation repair and settlement correction of lightly-loaded structures, and for installation prior to construction to prevent settlement. We use resistance piers for applications where movement during installation is tolerable, and where equipment required to achieve crowd during helical pile installation can’t get to the repair location.
For commercial foundation repair, helical piles are screwed into the ground to a layer of harder soil, and then attached to the footing. The load is then transferred from the footing to the pier, which results in the deeper, stronger layers of soil carrying the structure’s weight, bypassing weaker, shallower layers. Helical piles can be used to raise settled column bases or footings, and do not cause any movement to the structure during installation. There’s no vibration associated with installing helical piles, which makes them an excellent choice in sensitive areas.
Resistance piers are pushed into the ground using the mass of the structure as resistance. They don’t work too well in lightly-loaded structures, or where footings have broken an deteriorated, as they cause the structure to flex during installation. Resistance piers are generally easier to install in tight spaces than helical piles. Commercial foundation repair using resistance piers typically is done on poured wall structures which are sufficiently rigid to tolerate the dynamic loading associated with installing resistance piers.