Photo Album: Fenwick Island, DE mudjacking a concrete slab

Mudjacking is the process of drilling holes in a concrete slab and then pumping in a slurry of concrete and grout. When you have a slab directing on the dirt, you can't get jacks under the concrete. We use this method to fill a void under a slab from erosion, settling soils, or sink holes. In this case it was to correct damage done during Hurricane Sandy. The Delaware Bay rose up so high that it washed out under the owner's garage floor. This left a large cavity under the concrete and he was afraid it would collapse under the weight of a car.