What is Concrete Undersealing?

When concrete on streets, parking lots, or warehouse floors begins to degrade, there are a few methods of repair available. Concrete undersealing is a process by which hot asphalt is pumped underneath the concrete slab so it flows into patches that were hollow and eroded. After concrete undersealing, the concrete is more stable and can be overlaid with a thin layer of asphalt to repair cracks, saving the expense and time of replacing the entire surface. Large slabs of concrete are under constant duress from heavy loads, precipitation, ultraviolet rays from the sun, and the stress of expanding and contracting with hot and freezing weather. Aging concrete develops sinkholes, shows soil seepage at joints, cracks into fissures, or slides from its location. These are indications that the ground underneath the floor or road has eroded. One can rip out the concrete and replace it or make minor surface repairs in the hope that the problems are not major. Concrete undersealing provides a ...  more