Settled concrete is commonly a result of poor soil conditions below a slab. Because of this polyurethane has become a popular repair method because the material is so lightweight it will not further burden the already weak soil.
Both methods achieve the same results: raise and support sunken or unstable concrete slabs by drilling holes and pumping material under the slab. All drill holes are patched with concrete.
Mudjacking uses a grout material that is infused with Portland cement or simply just MUD. This mixture is hydraulically pumped under the slab to fill voids and raise the concrete. Mudjacking material weighs on average 100 lbs. per cubic foot.
Foam lifting uses a polyurethane foam material that is injected under the slab. When the components of this material are mixed, a reaction causes the material to expand. This expanded foam fills any voids and raises the concrete. This material is 100% water proof; it will never break down nor lose density. Additionally, it perfectly contours to the size and shape of the voids to fully completely support the pavement with 100% coverage. After it is installed it is a permanent and weighs about 2 lbs. per cubic foot.
Mudjacking involves drilling a series of 1” or bigger holes in a slab of concrete so the material can be pumped under the settled slab.
Foam jacking drills a nearly invisible 5/8” holes and the process calls for considerably fewer holes than traditional mudjacking.
Vehicle traffic 4-6 hours for average size vehicles when mudjacking and 15 minutes when foam jacking.
Mudjacking uses a grout based material infused with mud and Portland cement. It is hydraulically pumped under the concrete to fill in voids and raise the concrete. Foam jacking uses a polyurethane foam material that is injected beneath the concrete. When mixed, it expands and fills in the voids. The polyurethane material’s density always remains intact.
The material will last for decades, due to its cell structure that will not absorb water or deteriorate over time. The ground underneath may settle more over time in which we would be able to reuse the injection holes to re-lift when needed.