VOID FILLING

When concrete settles, it can cause serious damage to the structures they support. In most cases, concrete settlement can be traced to the dehydration and shrinking of the soil under the concrete, water erosion, poorly compacted sub grade and the washout of soil.

 

In each situation, a void is created under the concrete slab by the shifting of the soil or by a reduction of soil volume. The concrete may not be sufficiently strong enough to hold the load, causing the stressed concrete slab to crack, break, and eventually settle to fill the void.

The PROLIFT process


 


1.First, a series of 5/8" holes are drilled in an off-set pattern.

  

2. A two part resin based specialized poly-urethane foam is injected into each drilled hole leaving time for the foam to expand, making sure to fill all voids. If any open areas need to be free-sprayed, our team will make sure no empty spaces or caverns are left behind.

3. Once existing voids are perfectly filled and concrete panel is completely supported and undersealed. Solid, dense polyurethane foam material is unaffected by water eliminating future water issues, after work is performed and is complete concrete may be used  immediately. The holes are then filled with a high density cement grout and finished to match the existing concrete. Our team are experts, they know how to put just the right amount of material to support the slab, but never too much to over-lift or crack the concrete.

"Sometimes we can free- spray, leaving no scars behind."

COMMON CAUSES OF VOIDS:

  • Dehydrated Soil Beneath A Slab

  • Poorly Compacted sub grade

  • Soil Washout — Plumbing Leaks

  • Water erosion (drains, sub pumps, etc)

  • Animals and pests

What would you put under already settled concrete?

Ground erosion under concrete slabs will eventually lead to gaps under the surface, creating a hazard for those above. Allow our team at PROLIFT to fix the problem with our 3 step Prolift process.  We service driveways, commercial and industrial buildings, patios, garage and shop floors, pool aprons, foundations, side walks, ware houses, caverns and many other types of concrete slabs.

3 step Prolift process Advantages:

  • Very low viscosity.

  • Water impermeable polyurethane foam

  • Cures as fast as 15 seconds.

  • Small 5/8' holes, versus traditional 2 and 1/2" mud jacking holes

  • Light weight foam, over most other materials that are heavy and water based and can shrink over time.

  • Poly-urethane foam is strong, supporting over 50,000 pounds per square foot

  • Much more cost effective than a complete concrete replacement

  • Poly-urethane cures quickly, allowing you to walk on the surface within seconds

  • Unlike other products, poly-urethane will not break down over time

  • Most void fills take up to an hour with PROLIFT

Before

After

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