Just like with any construction project, customers are going to have a variety of questions to help them understand how their project is going to go and what to expect from the contractor. This is no different when trying to determine if slab leveling with polyurethane is the right solution for their project. Here are a few common questions that customers have when evaluating the slab leveling process.
1. How does slab leveling with polyurethane work?
Slab leveling with polyurethane is a relatively simple procedure to understand. The polyurethane is a specialized geotechnical system that is formulated to compact and densify soils with enough expansive capacity to lift concrete. So when the polyurethane is injected below a slab it helps reestablish the load of the slab back into the soil and then it expands to the point where it creates an upward lift of the slab.
2. Does polyurethane slab leveling require excavation?
No excavation is required with slab leveling. The process works by drilling 5/8″ holes, less than a penny, through the slab to give access for the polyurethane below the slab. The hole is covered up with a cement grout to help deal with potential aesthetic issues.
3. How long does the process take?
Polyurethane slab leveling is a fast process. Geotechnical polyurethanes range in expansion and cure time, but they typically cure up to 95% capacity within 25 minutes. This means you can drive a car over the treated area within 25 minutes after the project is completed. The project length is dependent on the size and scope of your project, but typical residential projects last anywhere from 2- 8 hours in length.
4. Does polyurethane harm the environment?
Since polyurethane is injected into the soil, it is reasonable to have concerns about the environmental impacts of the polymer. Our geotechnical polyurethanes are environmentally inert, meaning they do not leach chemicals into soils or water. In specialized formulations, our polyurethanes meet NSF-61 ANSI safe drinking water standards, meaning the polyurethane can be put in contact with drinking water without concern for contamination.
5. What is the cost of polyurethane slab leveling?
It goes without saying, but polyurethane slab leveling costs are dependent on the size of your project. However, when compared to the cost of replacement, polyurethane slab leveling is significantly less expensive. Additional costs to be considered are costs of time, costs to excavate, or the costs to lose access to your structure over a period of time.
Contact us today if you have additional questions about the slab leveling process. We can offer a free consultation for your concrete repair needs