Epoxy injection is a method used to repair cracks in concrete structures. The process involves injecting a mixture of epoxy resin and a hardener into the crack, which then hardens to form a strong and durable bond that holds the crack together. The mixture is injected into the crack under pressure using specialized injection equipment. Once the epoxy has hardened, it bonds to the surrounding concrete and effectively seals the crack, preventing water and other contaminants from penetrating the concrete and causing further damage. Epoxy injection is typically performed by trained professionals and is usually done after the crack has been cleaned and prepped. It is commonly used for structural repairs such as foundations, beams, and columns, as well as for repairing cracks in floors, walls, and other concrete surfaces.