The most frequently used injection methods are the following:
Sealing the surface with epoxy or cement mortar
Low or high pressure epoxy or polyurethane injection
Grout based injections
In some cases the concrete is so deteriorated that injection would not be useful.
Replacing the deteriorated concrete with new concrete will be carried out. The goal is to replace the structural integrity of the structure in order to prohibit water circulation.
Temporary support work is often necessary to avoid further deterioration of a building. New specific concrete is chosen depending on the type of work to be performed and is then pumped in.