Driveway Sunken Concrete Raising in Havre De Grace, MD

Polyurethane foam concrete raising and mudjacking are two methods used to raise and support sunken or unstable concrete  slabs by drilling holes and pumping material under the slab. 

 Slabjacking is a term used for both methods.

Polyurethane foam concrete raising and repair uses a foam material that is injected under the slab.  When the components of polyurethane are mixed, a reaction causes the material to expand.

By drilling small holes and pumping material under the concrete slab, expanding foam fills any voids beneath the slab to raise and level the concrete.

We are concrete repair contractors specializing in lifting concrete with polyurethane foam,

Many factors are involved in settling concrete:

• Poor Soil Conditions.  Clay-rich soils expand and contract with moisture  content.  As soils become saturated with water, clay expands and loses its strength, allowing slabs to sink.  Often heavy rains, melting snow, and plumbing leaks can result in a sunken slab.

• Compaction. Many homes are built on back filled soil.  If soil is not compacted correctly, back fill will slowly and unevenly compact, allowing slabs to  settle.

• Tree Roots. Trees and large shrubs can consume tens of gallons of water a day.  Loss of water in soils located near concrete results in settling of slabs.

• Erosion. Improper drainage, including misplaced downspouts, can cause soil instability by creating areas of saturated soils, allowing slabs to settle.