Construction joints, especially in wall-wall and wall-floor junction, when installed underneath ground level, always need particular attention when it comes to waterproofing.
Defects in this area are not uncommon. Before pouring the concrete for the wall, injection hoses are installed in the construction joint. These hoses are usually perforated or slotted. After the concrete has cured, an elastically curing resin is pressure injected into the injection hose. The joint is now permanently elastically sealed and waterproofed.
For the application via injection hose, KÖSTER IN 5 is the product of choice. KÖSTER IN 5 is an EN 1504-5 certified resin with a low viscosity and an outstandingly long pot life, suitable for the injection into dry and moist cracks or joints. These two aspects are very important for the application so the product has enough time to enter the small and fine voids and doesn’t start to react during the injection.
All KÖSTER injection resins are installed with the KÖSTER 1C Injection Pump either through packers, or in the case of injection hoses, through special units placed on the walls.
Always adhere to the specifications in the respective Technical Guidelines.