MUDJACKING ON STEROIDS-Increasing Profitability with Residential Polyurethane Concrete Raising HMI REP Mar 1, 2010 0000 Using polyurethane to lift concrete slabs is not a new concept. It was first introduced in Europe in 1989 and quickly spread to the United States. The process was initially patented here in the US and was primarily used on large DOT projects. The big news is that the patent expired in 2003. Now any contractor with the know how and correct equipment can use this efficient technique to raise concrete slabs for jobs of any scale. Yes – polyurethane concrete slab lifting can be a profitable business even with a project focus at the residential level. When first introduced, prohibitions and costs of equipment and material made profitability elusive at a small scale. That is not the case today. Why Is Polyurethane Concrete Lifting Advantageous? 1) It Is Easier – Traditional mud jacking usually takes a 2-3 man crews. Polyurethane concrete raising can be accomplished by one man. Clean up is also easier since the poly is actually mixed at the gun so there is less mess and literally no equipment to clean. So even though the cost of polyurethane material is greater than mudjacking material, the savings in labor, clean up, and equipment maintenance makes residential polyurethane concrete raising cost effective and efficient. 2) It Is More Attractive To The Customer – Light weight polyurethane (only adds 3-5 pounds per cubic foot to the sub base compared to 100 pounds plus that mudjacking adds) is injected through very small holes in the concrete (5/8” holes). When compared to drilling traditional 1 5/8 inch holes for mudjacking. The perception and reality is a less obtrusive repair which adds to the perceived value. With training, the correct equipment, and the right polyurethane material, polyurethane concrete raising can be a profitable business for the residential contractor. Now you can make a profit while offering a nearly invisible means of raising and stabilizing residential concrete. Make work easier while still saving your customer the mess and hassle of removing concrete slabs that have settled. Think poly for residential in the future. Ernie Cvetezar is the CEO and Founder of Raiserite-HMI. He is a nationally known expert in the concrete lifting industry with nearly 40 years experience contracting and manufacturing concrete lifting equipment.