Polyjacking > Mudjacking

Concrete surfaces such as basement floors, driveways, patios, and more are all impacted by soil movement and weather that can cause damage and weakness. The slabs can also sink if the surrounding soil no longer supports it. These problems won’t repair themselves, the longer you wait to fix the problem, the bigger the issue and damage will be.

If your foundation sinks, it can cause damage throughout your business or home. Walls and floors can crack or lean, floors can slope or warp, and doors and windows may not stay open or closed. The worst-case scenario is that the foundation collapses and brings your structure down with it. If the soil that supports the foundation or concrete becomes oversaturated, too dry, or isn’t compressed correctly, it will no longer give the slab the stability that it needs.

Luckily, there are solutions to keep your concrete and foundation stable and level.

Polyjacking and Mudjacking Solutions

Sinking concrete usually occurs because a void has formed under the slab. Unless the void is filled and the soil stabilized, the concrete will continue to sink. If left unaddressed, the repair may have to be done with underpinning, greatly raising the time, money, and effort needed to fix the problem.

When it comes to the task of filling in voids, mudjacking and polyjacking both are up for the job. Mudjacking uses a mud slurry to fill the void and lift the concrete, whereas polyjacking utilizes a polyurethane foam to fill the void. In both methods, holes are drilled into the concrete above the void and then the slurry or foam is injected, filling the cavities below the concrete. The slab will be lifted to a level plane and the drilled holes will be filled. Mudjacking uses bigger holes than polyjacking (3-4″ compared to 3/4 to 1″).

Both forms of concrete lifting can be used for a variety of concrete surfaces including foundations, sidewalks, warehouse floors, tennis courts, and swimming pools.

Pros and Cons of Both Concrete Lifting Solutions

Though both methods are similar at face value, there are some pretty big differences between mudjacking and polyjacking.

Mudjacking Pros

• Comparatively inexpensive
• Time-tested
• Naturally occurring materials

Mudjacking Cons

• Doesn’t fill the void completely
• Short-term results that have to be repeated every couple of years
• Slurry material is 30-50x heavier than polyurethane
• Slurry material is prone to erosion
• Large holes must be made in the concrete
• The slurry can take days to set and harden

Polyjacking Pros

• Long-lasting results
• Lightweight materials
• Polyurethane foam density fills the voids
• Soil mixes with the foam to bond securely and gains strength
• Small injection hole
• Doesn’t wash away
• Able to adjust leveling to within 1/100″
• Polyurethane foam sets within 15 minutes

Polyjacking Cons

• Costs more than mudjacking
• Not as well known

Polyjacking.com Swears by Polyurethane Injections

We want to offer the best repair methods to our clients. We have been using polyjacking for so long that we coined the name! In the past, only commercial properties and municipal projects used polyjacking, but we have learned over the years that it is a great solution for residential repairs, too.  We’re dedicated to providing the residential and commercial owners an affordable and lasting repair for sinking and damaged concrete slabs and foundations.

We know that you don’t have the time to have your place torn up with heavy equipment and then having to wait for the slab to be ready to be used. Polyjacking uses only one truck for the foam and the slab is ready to use within 15 minutes of completing the injection. We won’t tear up your landscaping or disrupt your business while getting your slab repaired. You can rest easy knowing that your concrete will be stable when it comes to sinking, heaving, or cracking.

Contact the concrete lifting experts at Polyjacking.com to learn more about how our polyurethane foam can lift your concrete and provide you with a stable and strong surface, protecting your property, equipment, and people.