Polyurethane foamjacking is a concrete raising solution that has captured a lot of attention over the past two decades and for good reason. The process has been deemed clean, fast, safe, and cost-effective. This article is meant to summarize what polyurethane foamjacking is and how the process is minimally disruptive for your concrete slab, your schedule, and your pocketbook.
How Concrete Raising with Polyurethane Foamjacking Works
Foamjacking works by addressing settlement, voids, and loose soils underneath a concrete slab with a high-density polyurethane. The concrete raising contractor injects the polyurethane through a 5/8″ hole that is drilled through the slab to give access to the void and weak soils underneath. The polyurethane initially enters the soil or void in liquid form. The material reacts and expands as it travels through the soil or void. Once the void is filled, the polyurethane densifies and recompacts the soil beneath the slab. Once soils are sufficiently compacted, the injection process is continued with careful monitoring until the pressure created by the polyurethane lifts the slab. With the right contractor, the slab can be lifted back to level, re-establishing contact between the soil and slab, and the weight load of the slab is reestablished back into the soil.
How is Polyurethane Foamjacking Minimally Disruptive?
Polyurethane Foamjacking requires no excavation and is very fast. The concrete raising solution only requires nickel-size holes to be drilled into the slab and that is it. After the injections are complete, the holes are filled with a non-shrink grout that hardens and is nearly imperceivable. The injection process is minimally disruptive and clean so you won’t be fretting over the condition of your concrete or yard.
The speed of the concrete raising solution is also minimally disruptive to your time. Once the polyurethane is injected, it cures to 95% capacity within 20 minutes (you can drive your car over it!) A typical slab lifting project normally only takes a couple of hours to 1 day, depending on size and complexity.
What About Costs?
Concrete raising with polyurethane foamjacking is in most cases, less expensive than tearing out and replacing the concrete. This advanced technology helps save you money, extends the useful life of existing flatwork, and decreases disruption to your bank account!
What Should You Do Now?