G4_New Foam Pushes Up Sunken Concrete (Approaching)_01

We have all seen broken sidewalks and roads. Tree roots pushing up the concrete are very common. The ground may have sunk. When this happens, the concrete can also crack and pull apart. Whatever the reason, the motion may cause small cracks to form in the concrete. With enough motion, the concrete will break into pieces. When concrete is broken into pieces, it is called a physical change.

Even though the concrete is broken into pieces, it is still concrete. When the pieces are not aligned, it can be unsafe. For example, one side may be higher than the other. It could cause a person to trip. Concrete is very heavy. It is hard to place it back into the right position. Because broken is not safe, it must be fixed.

One way to repair concrete is to simply replace it with new concrete. This method requires the old concrete to be removed. The concrete must first be busted up into small pieces. The pieces are then hauled away. New concrete is mixed and placed in the void and left to dry for many hours. Removing concrete is hard work, takes a lot of time, and may be expensive. What if there was an easier solution?

If a piece of concrete slab has sunken, you don’t always have to replace the slab. It is possible to raise it back up into place. One way to do this has been around for many years. It is called mudjacking.

Mudjacking is a process of lifting sunken or settled concrete. The process of mudjacking involves pumping grout into holes drilled in the concrete. The grout is very dense. It is made from finely crushed limestone aggregate and water. It is often mixed with cement. This helps it to harden below the slab. 

The grout is forced into the holes under high pressure. As the grout is forced in, it lifts the slab into place. Mudjacking is easier than replacing all the concrete.