Pressure Grouting Concrete Cracks

Also there is usually a significant amount of grout that is forced outside between the wall and the ground to fill voids and make an additional water barrier.

Pressure grouting concrete cracks.

Cement grouting for cracks in concrete and masonry wide cracks particularly in mass concrete abutments piers and masonry substructures can be repaired by filling with portland cement grout. There are two types. Epoxy crack injection utilizes epoxy grout to structurally weld cracks to permanently restore the integrity of a structure. The injection of a cement based grout is a widely used and well known method of lifting concrete slabs that have settled.

The same sequence as described above is adopted for injecting the cement grout also. A high pressure pump forces the liquid grout into the entire crack no matter how small the crack is. On the day of grouting all the plugs are removed to drain out excess water and restored before commencing grouting. This procedure which is often referred to as pressure grouting or slab jacking can be a great alternative to replacing existing concrete slabs.

As the grout cures it produces a much finer pore structure. Pressure crack injection can be used to stop leaks seal cracks and restore strength of cracked concrete. When a high pressure pump is used a higher quality and more flexible grout can be used. A flexible grout can take some movement without cracking and failing.

Applications of cement grouting for cracks.