Slab Lifting Foam

Concrete is the #1 building material in the world. Concrete slabs often settle or sink, primarily because supporting soils have failed. Erosion, poor compaction, and decomposition of organic material all contribute to slab settlement. Historically, sunken concrete slabs would be demolished, hauled away and a new slab formed, poured and finished. This is labor intensive, expensive and disruptive to surrounding environment.

Settlement destroys the integrity of concrete slabs and foundations. The root causes are often due to poor compaction of fill materials, erosion, high water content (shrink and swell cycles), decaying organic materials or freeze thaw cycles.
For decades, the terms Slab Jacking and Mud Jacking have been used to define the act of raising sunken concrete. Using traditional methods the results and degree of precision have varied. In many cases, settlement issues are compounded due to the additional weight of the cement-based grout used to raise the slab. Today, Precision Lift provides scientific advantages, proven methodologies, and a precise lifting action that can be controlled within 1/8 of an inch or less of your desired elevation.

One alternative to replacing concrete is a method called mud jacking. Large diameter holes are drilled in the slab with cement grout pumped below the surface to “jack” the slab. The additional weight on unstable soil could lead to re-settlement. As shown below, you’ll never have this problem with Precision Lift.

Advantages for property owners and facility managers

  • Less Time
  • Less Weight
  • Less Disruption
  • Less Cost
  • Less Environmental Impact

Precision Lift fills voids, consolidates fill materials and eliminates water pathways. All of these functions assist in stabilizing and strengthening supporting soils. We recommend filling voids caused by lifting of foundation greater than 1″.

Before After
Slab Lifting Foam - Before Slab Lifting Foam - After

Why does concrete settle?

Settlement destroys the integrity of concrete slabs and foundations. The root causes are often due to poor compaction of fill materials, erosion, high water content (shrink and swell cycles), decaying organic materials or freeze thaw cycles. Our structural foam fills voids, consolidates fill materials and eliminates water pathways. All of these functions assist in stabilizing and strengthening supporting soils.

Concrete slabs that are settling or rocking can be stabilized by injecting structural polyurethane foam into the voids beneath the slabs. Slabs can also be lifted back to their original position using our Precision Lift process. A rapidly expanding foam is injected through small diameter holes directly beneath the slab. By speeding up the reaction with heat and by controlling the amount of material that goes in beneath the slab, we are able to precisely control how much the slab is lifted.

There are many applications for this product. There are residential, commercial, and governmental projects that can benefit from this highly effective structural foam. The many applications of this project are for areas such as patios and porches, walkways, driveways, pools, retaining walls, roads, catch basins, and of course foundations and concrete floors.

Trained and certified technicians are on site to monitor proper lifting and void fill to maximize product efficiency and effectiveness for minimal loss of use and maximum benefit to the customer.