Lightweight material, fewer and smaller holes add to polyurethane's waterproofing properties, giving polyurethane a clear advantage over mudjacking material.​



Traditional mudjacking, or slabjacking, is a remedy that’s been used for decades to raise sunken slabs. Now there’s a newer alternative available from Liftech Concrete Leveling  that replaces the cement-based grout mixture typically used for concrete leveling with a two-part polyurethane product that expands to fill all voids, providing a cushion of support to raise the concrete.

The polyurethane concrete lifting material is available in several formulas designed for different applications. One of the key benefits of using the polyurethane is that it is formulated with the exact characteristics needed for specific jobs. We can provide lifting foams that are engineered to support heavy loads such as raising highway and industrial slabs. Standard foams for raising sidewalks and other residential concrete, and foam designed to set up in, and displace water. The two liquid components that combine and react to create the polyurethane foam are mixed at the tip of the injection gun. When this mixture is injected beneath the concrete it will flow like water into any voids present for about 15 seconds before the chemical reaction takes place. When this reaction takes place, the foam expands to 25 - 30 times its liquid volume within 45 seconds. Fifteen minutes after the material sets, it reaches full compressive strength. Because of the characteristics of the material and how it is delivered, polyurethane can cover a larger area in less time.

The process of void filling and raising a concrete slab is the same as traditional mudjacking. Polyurethane expands to lift the concrete versus the pressure of pumping a traditional mudjacking material.

If your warehouse floor is cracked, uneven or hollow sounding call Liftech Concrete Leveling! Even a cracked or rocking concrete slab can be saved and your warehouse floor can be leveled and stabilized.


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