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Concrete lifting, also known as concrete leveling is a repair method that returns a concrete slab to its original position. the two main types of concrete lifting are mud jacking and polyurethane foam injection. Mud jacking is an older methodology that requires more invasive techniques

 Mud jacking has been the industry standard for concrete leveling for many years. It utilizes a clay/mud material pumped beneath the concrete slab to achieve lift. Mud jacking requires a 2″ hole to inject material and, like concrete, can take several hours or even days for the material to fully cure.

Polyurethane injections are quickly replacing the tradition mud jacking as it requires a smaller injection hole of about 0.5″, cures in a matter of minutes, and carries a much lower risk of additional settling later due to its light weight properties. Polyurethane injections use a two-part mixture injected beneath the concrete to create an expanding foam to achieve lift. By the time the technician has finished lifting and cleaning up the work area the material is already cured and safe for regular traffic again. Polyurethane is less likely to experience additional settling later as it is very lightweight and the material does not break down or wash away with moisture.

No! Concrete lifting is minimally invasive and faster and cheaper than digging up and replacing a slab

The project shouldn't take more than a few hours for the most basic repair, but for lifting a large area, expect a full day of work. You'll be able to walk on the raised surface immediately, and vehicles can drive on lifted concrete within four to six hours 

Within the first few years after concrete has been poured the soil compacts naturally and will not experience such a dramatic compaction again unless the soil is disturbed, flooded, or significant weight is added. Concrete corrected by mudjacking is more likely to experience additional settling than concrete corrected by polyurethane injection because the material used is not only adding up to 150 pounds per cubic foot to the void beneath the concrete, but it can also be washed away and broken down. Polyurethane injections are less likely to experience additional settling as the material weighs in at about 2 pounds per cubic foot and is hydrophobic so it will not break down or wash away due to the weather. 

If the slab to be lifted has severe cracking and is in generally bad condition, lifting will not work. Talk to us to get more information regarding what can be lifted.

Yes, Lift that slab offers free estimates for all of our construction services. Contact us today to schedule your free estimate.