How to Fill a Void Under a Concrete Slab Foundation

If you’re looking for a how to fill a void under concrete slab foundation method, you may have come to the right place. There are various methods, including urethane foam, sand, or a cement grout mixture. We’ll discuss each strategy below. To begin, you should pump the material through the holes at a pressure of 10 psi. Next, switch hoses and repeat the process until the void is filled.
URETEK’s polyurethane foam fills voids
Polyurethane foam is a highly effective method for stabilizing concrete slab foundations. Injecting this material through tiny holes in the foundation walls, the foam expands to fill the voids and seal them. This process is also beneficial for discrete sections of damaged slabs. While it’s possible to repair a gap by breaking up the concrete over the affected area, the void is very likely to reform.
Another method of lifting concrete is called mud jacking. It … Read more