Raising Concrete Slab With Foam Diy. Additionally, a new pour is usually the most expensive of your three options. Water pools there when it rains and drains through cracks in the patio in a few hours.
Polyurethane concrete raising is a newer method used to achieve the same goal of fixing problems associated with settling concrete. When it levels out, remove the hose. Polyurethane expanding foam is injected under the slab through small holes that are bored through the concrete surface.
A 3/4 concrete addition layer will not have the tensile strength to stand up to the wear and tear.
Their process is not the calibrated and automated way of concrete raising that we stand behind. Pouring concrete over soil that can t handle the weight and support the slab will not deal with the issue. Once the holes have been set, the geolift is injected in between the concrete and the dirt. Raising concrete with polyurethane foam is done with incremental injections.