Sunken or uneven concrete slabs can be unsafe and unsightly. Poor soil stability, water erosion, earthquakes and tree roots are some reasons for the cause of sunken concrete slabs. Sinking or settling of concrete slabs can negatively impact your home’s curb appeal.
Fortunately, mudjacking is an effective method to raise concrete on decks, patios, basement, walkways, garage floors, driveways, and porches. It is also popular as slab jacking or slab leveling or concrete lifting. The process comprises of raising settled concrete slabs. Holes are drilled through affected area and mixture of soil, sand, cement and water is pumped under the compromised slab for lifting it. The mixture is left to cure and a solid, stable slab gets created. It stabilizes the sunken concrete back to its original state.
Slab lifting is a professional task, which needs special equipment. Local trained contractors with good understanding of soil conditions and their needs are best to hire for repairing sunken home foundation.
Slab lifting can be applied for repairs in two primary situations:
When foundation perimeter gets compromised slab sinking issues get raised. The foundation contractor levels the settled section using push piers. After installing piers under perimeter grade beam, foundation is raised but void gets created beneath the slab. Concrete lifting process is used to fill this space. 2” holes are drilled through perimeter grade beam. Slurry is pumped into this void.
Raising interior floors
Sometimes interior portion of slab foundation sinks down. Slab jacking is applied to lift the sunken interior floors using the same drilling, pumping slurry, and lifting the affected area.
Benefits of mud jacking process
- The process can be performed in any type of weather
- It is rapid process in comparison to rip & replace approach, where contractor breaks the concrete, removes, and replaces it. Mud jacking gets finished in less than few hours depending on project size.
- The slurry takes 24 to 48 hours for curing prior taking load. Replaced concrete will take almost a month to make it available for use again.
- Slab jacking is more affordable than replaced concrete.
- Causes no damages to lawn, so home curb appeal gets protected.
- It is easy on the environment because no cement is available for disposing.
Polyurethane foam and slab jacking are two acceptable methods used to lift sunken concrete slabs. Results achieved are same but the process to achieve the results and extended performance of both methods totally differ and the method to apply depends on personal preference and needs of the situation.