Using a concrete or cement slurry as a mudjacking material is an old dying technology. Although easy and cheap to do, it’s very limited in its ability to provide a good looking, long, lasting repair. You see, concrete is the problem, simply adding more to it is not the solution. Concrete wouldn’t sink so much if it wasn’t so heavy. Adding more cement or concrete compounds the problem by aggravating an already compromised area. Our polyurethane does not add significant weight to the area. But, don’t take our word for it – even our local DOT requires the use of polyurethane for the repair of our local highways. Request Estimate