The type of slab The Mudjackers raises is referred to as “floating concrete” meaning the concrete moves with the ground. The ground can move as a result of frost and thawing or the amount of moisture present in the soil at different times of the year. Therefore, it is necessary to use material that is able to take on or release moisture at the same rate as the surrounding soil as to float the concrete properly.

When new concrete is installed, a base of compacted sand and/or gravel is used. Logic assumes it would be best to raise the sunken slab with more of the same, but it is not possible to pump pure sand. A pumping aid is needed. Our engineered material is mixed at each job site to adjust for each condition encountered.

Our formulation has enough flexibility to fill voids and pockets. This will result in using more material providing a more thorough complete solution that has a stronger P.S.I. rating greater than a normal base for concrete. Some competitors mixtures are cement based that can set up too quickly. This creates a “pillaring effect” with material established as pillars and leaving voids throughout the affected area.