Everything You Need to Know about Polyjacking

Aug 08, 2022

When we are called to assist a home owner or business owner with a free estimate on whether they should level their concrete, or replace it, our customers are often pleasantly surprised that they can have perfectly aligned concrete again in a matter of minutes–saving them time and money . That’s because when compared to concrete replacement, the process of raising concrete with polyurethane foam (known as polyjacking) is inexpensive (compared to the alternatives), and is exponentially faster than replacing the concrete.

HOW IT WORKS

Polyurethane Concrete Raising (Polyjacking) uses a foam material that is injected under the slab. When the components of this material are mixed, a reaction causes the material to expand. This expanded foam fills any voids beneath the slab and raises concrete. This material will never lose density, is permanent and weighs only about 2 lbs per cubic foot.

STEPS TO RAISING YOUR CONCRETE

Most concrete raising jobs will take between one to two (1-2) hours-start to finish-and your concrete will be ready for use immediately upon completion!

Injection holes are strategically drilled around the areas where the concrete is sunken and requires lifting.
Once everything is prepped and the hose and materials are in place, the polyurethane foam is injected through the holes. This fills the space underneath the concrete slab and using the foams expansive forces lifts the concrete back to its original and correct level.
Upon completion of leveling the concrete, the injection hole(s) are filled with new cement, allowing you to use your surface immediately. Polyurethane Concrete Raising uses a foam material that is injected under the slab. When the components of this material are mixed, a reaction causes the material to expand. This expanded foam fills any voids beneath the slab and raises concrete. This material will never lose density, is permanent, and weighs only about 2 lbs per cubic foot.

Check out the video below by alchemy-spetec.com for even more information on why polyjacking may be the right solution for your project! Foundation King is proud to use Alchemy-Spetek products for slab lifting.