Void Filling:
Concrete settling is not the only issue our foams can solve. Voids under slabs are often present in areas where wash out or excessive settling have occurred. This material will weigh on average 15-25 times less than a traditional mudjacking or cementitious grout mix, applying less stress on an already failed subgrade.
The process for void filling is the same as concrete raising: drilling, port installation, and injecting the material. All dual component polyurethane foams create heat when installed. Void fills must be done in a layering method to allow heat to dissipate safely.
Joint/Slab Stabilization:
Slab stabilization is often required when slabs lack support, but may or may not be settled. Slabs can crack when loads exceeding its capacity are applied.
Slab/joint stabilization applications require the voids to be filled to eliminate movement and offer support. This type of foam is specifically designed for joint/slab stabilization applications due to its very long reaction time and minimal expansion strength. It will take longer to expand, allowing for better coverage under the slab or down a joint.