Not that long ago mudjacking was the only way to repair sunken concrete. It’s a solution that has a long history and it’s proven to work. It’s done by injecting slurry cement underneath the settling concrete slab. On the other hand, PolyRenewal uses polyurethane foam to lift the concrete. It’s a superior method because it’s much less invasive, it’s a long-term solution to the issue causing the sinking, and it can be done anywhere unlike mudjakcing, which requires too much heavy equipment.
PolyRenewal is a more convenient method for repairing sunken concrete because it requires only small holes to be drilled into the slab. The holes are the size of a penny and they can easily be covered up once the lifting process is completed. The devices used to inject the foam are also convenient since they are smaller and can easily be used in closed-off areas. The cement used for mudjacking takes about 48 hours to cure and be usable. With the polyurethane foam, you’ll only need 30 or so minutes to get the same effect. That means that you can use your driveway as soon as the repair is done.
Sometimes, the cement used for mudjacking is rough and heavy and in turn, it can damage the soil further once it’s placed on top of it. This will lead to further settling due to the pressure that’s put on the already-damaged soil. Polyurethane foam is strong but it’s also light and it won’t damage the soil once it’s in place. Most contractors recommend PolyRenewal as a more reliable option.