Getting to the Bottom of Sunken Concrete with Deep Foam Injection

If you have sinking concrete work, you know how frustrating it can be. Pooling water, stubborn weeds and the unlevel surfaces make your home look neglected, no matter how well you take care of it. The sinking concrete isn’t your fault. Something beneath the surface is causing the problem, usually erosion or unstable soils. Most correction methods raise the concrete at the sub-surface level, which provides immediate results. But how do you know the problem isn’t further down? And, if it is, how can you fix it? The answer is the deep foam injection process.

Deep Foam Injection Identifies and Stabilizes Soil Problems

Using engineering technology called a dual mass dynamic cone penetrometer (DCP), soil density is tested down to 15 feet. When instability is discovered, tubes are placed through the concrete and into the ground. Specialty foam is injected through the tubes using a carefully controlled process. The foam is very fluid and enters the destabilizing voids, branching off and filling any cracks, crevices and other imperfections. The concept is like the way tree roots work, taking up the slack of weak spots and binding the soil together, preventing further erosion.

The lightweight foam keeps its volume, providing a stronger and stable base for your concrete, which can then be raised with foam at the sub-surface level. By eliminating the root cause of the sinking, the repair is long-lasting and environmentally sound.

Safe and Effective Concrete Lifting

The injected foam is inert and does not leach chemicals into the ground. It doesn’t react to changing seasons, and it helps with water management in waterlogged soils. It is an innovative solution to repairing concrete where it matters most—far beneath the sub-surface—and it requires an expert team to ensure the testing and lifting are done properly.

At Advance Concrete Lifting and Leveling, we can correct sunken concrete hazards found in driveways, walkways, pool decks, patios and more. Deep foam injection is a long-term solution we can implement quickly and cost-effectively. To learn more about repairing your concrete from the bottom up, contact Advance Concrete Lifting and Leveling today.