Additional injection

When injecting cracks, the material does not only flow into the crack but also into possibly existing cavities and may seep into pores. This action may result in the fact that the required filling level of the crack (80 % acc. to ZTV-ING) is not achieved. If the filling material is waterproofing, the infiltrating water often seeks new ways. The two occurrences cannot/can hardly be avoided and do not constitute a defect. It is recommended to inform the client in advance. By additional injection, the crack will be refilled and the new waterways will be obstructed.