Void Filling Solutions
To fix a settling slab, the voids under the slab must be filled. The best solution is to use polyurethane foam or poly jacking. This process involves the injection of a dual liquid material underneath the slab through penny-sized holes drilled in the concrete. Once injected beneath the concrete, the polyurethane expands to fill the voids and compact the soil around the voids. This helps to create a more stable base for the entire foundation.
Some of the most common issues that result in void formation are:
- Soil Shrinkage: When the weather is extremely hot and dry, the soil under the slab will shrink, forming voids and gaps underneath the foundation.
- Erosion: These voids form due to erosion from excessive rainfall, which washes away the soil under and around the concrete slab.
- Hydrostatic Pressure: Heavy precipitation can lead to an increase in hydrostatic pressure in the soil. This pressure pushes on the concrete, causing it to shift, settle, and even develop slab cracks. Animals: In Florida, we have quite a few reptiles and other animals that can burrow a hole underneath your existing foundation.
- Shifting Soil: Erosion, shrinkage, and poor compaction may cause the soil under your slab to shift and form voids. Poly Lift USA uses underground cameras to detect sizable voids. It is fast, accurate, and an inexpensive method for void detection. The cameras help to accurately locate voids, underground structures, embedded utilities, and other objects.
Why Poly Lift USA & The Benefits of FoamJection
Concrete rest on subgrade, which is a fancy term for the earth below. When the subgrade begins to weaken and settle, the Concrete loses its support. This can be caused by a variety of factors…weather, rain, leaks, excess weight to name a few. While the root causes may vary, the end result is always the same. Structural damage.
Over time, often in months, concrete begin to stress, then crack and, eventually, break apart and sink. This leads to trip hazards, unsightly appearance and a reduction in property values. This damage is structural – not cosmetic. Neither patching nor a new surface will solve the problem.
At Poly Lift USA we offer customers an environmentally safe, affordable, long-term resolution.
Our Foamjection technology has enabled thousands of property owners in Florida, Georgia and Texas to repair their damaged void and save thousands in replacement costs. Our typical repair is well under 50% less than cost of replacement.
Here’s how Foamjection technology works:
- Penny size holes are drilled through the damaged slab at 5-foot intervals.
- Specially formulated polyurethane foam is pumped through the slab reaching the subgrade underneath.
- The liquid foam fills voids and expands rapidly to compact the earth beneath the slab.
- As the foam hardens it locks the slab in place. We call this stabilization.
- When lift is required, additional foam is pumped using carefully calibrated pressure gauges until the slab is raised to the desired height.
- Drill holes are filled with sanded concrete.
All Poly Lift USA repairs come with a 10-year, transferable warranty.
If you live in Florida, Georgia or Texas and your concrete area is starting to crack, settle or sink, please call Poly Lift today! (844-765-9872). See why 10,000 clients have repaired, instead of replaced their damaged concrete with Poly Lift USA.
We understand how important it is to secure your property investment and protect your family.
Please don’t wait for your concrete to become so damaged that repair is not possible. If cracked pieces become too fragmented (less than 3 feet square) repair will no longer be an option. (844-765-9872)
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