Routing and sealing: This method is used to repair dormant, non-structural cracks. A groove is routed along the crack and then filled with a sealant.
Injection grouting: This method is used to repair cracks that are wider or deeper than can be repaired with routing and sealing. A grout material is injected into the crack to fill it and strengthen the concrete.
Drilling and plugging: This method is used to repair cracks that are very narrow or deep. A hole is drilled into the concrete at the end of the crack and then plugged with a steel or epoxy plug.
The best method for repairing a concrete crack will depend on the size, depth, and location of the crack, as well as the structural integrity of the concrete. It is important to have a qualified concrete repair contractor inspect the crack and recommend the best repair method.