Pressure Grouting Concrete Cracks

The injection of a cement based grout is a widely used and well known method of lifting concrete slabs that have settled.

Pressure grouting concrete cracks.

A high pressure pump forces the liquid grout into the entire crack no matter how small the crack is. A flexible grout can take some movement without cracking and failing. 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. 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.

On the day of grouting all the plugs are removed to drain out excess water and restored before commencing grouting. When a high pressure pump is used a higher quality and more flexible grout can be used. Pressure crack injection can be used to stop leaks seal cracks and restore strength of cracked concrete. Crack injection pressure grouting crack injection we use ultra low viscosity materials which can be injected to fill the narrowest of cracks up to 0 2mm in width thixotropic resins or cementitious materials are used for repairing cracks of greater width.

This procedure which is often referred to as pressure grouting or slab jacking can be a great alternative to replacing existing concrete slabs. The same sequence as described above is adopted for injecting the cement grout also. As the grout cures it produces a much finer pore structure. The process of grouting of concrete cracks is repeated with other holes till all the holes are covered.

There are two types.