Concrete Heaving

The St. Louis and Kansas City area may experience concrete problems due to frost heaving. This can damage many types of concrete and masonry including sidewalks, patios, slabs, retaining walls, and foundation walls.

The cold temperature in St. Louis and Kansas City causes the cement to contract while heat causes expansion. When water freezes it takes 10% more volume than when it is liquid. So when freezing water occupies a confined space, it exerts tremendous expansive force. This extreme force will cause the cement to heave.

Other causes of concrete heaving is when the clay-rich soil in Kansas City and St. Louis absorbs the water rather than allowing it to drain through. When this water is absorbed, it can cause the same destruction as frost heaving.

Concrete Heaving Solutions

Concrete heaving repair uses polyjacking to get your concrete back to its original level. This method is much more cost-effective than replacing concrete. We use a high-density polyurethane that is injected into the affected area to fill any voids beneath the concrete.

The process is relatively simple:

• A small hole is drilled through the affected concrete
• Polyurethane foam is injected into the void beneath the concrete, where it expands, raising the concrete to the desired level
• The holes are filled and the poly equipment is removed
• The concrete surface is immediately ready for use, due to the short hardening time.

There are many advantages to high-density polyurethane concrete leveling compared to other methods, like mudjacking. Some of these advantages are:

• More economical - provides a permanent solution that is much more cost-effective than removing and replacing concrete.
• Superior accuracy - Polyurethane foam creates its own hydraulic lift so we can control the lifting process precisely.
• Conformability - Polyurethane foam contours to the size and shape of the voids to completely support the pavement with 100% coverage.
• Lighter weight - Polyurethane adds only 3-5 pounds per cubic foot to the sub-base compared to +100 pounds that mudjacking grout adds.
• Better structural integrity - The concrete pavement injection holes are only 5/8" in diameter compared to 3" or larger for other concrete lifting methods.
• Moisture resistant - seals the underside of concrete pavement joints and cracks to eliminate water penetration and erosion issues.

Polyjacking.com has the experience and uses the best products for concrete heaving repair. We serve the Kansas City, St. Louis, and surrounding areas for all of your concrete repair needs. Contact us today!