Damage in existing buildings is often caused by leaking pile foundations. Water can enter the building through the construction joints, or makes its way along the reinforcement steel. The waterproofing of pile heads must withstand heavy loads from the whole building, and needs be easily connected to the area waterproofing.
At first, all non load bearing materials and separating substances must be removed from the surface of the pile head. After that, the surface must be leveled and reprofiled with KOSTER Repair Mortar. This reprofiling must also include the installation of a fillet adjacent to the pile head. KOSTER NB 1 Grey is used to waterproof the pile head.
The waterproofing on top of the blinding layer is made with KOSTER Deuxan 2C. Embed KOSTER Glass Fiber Mesh into the fresh first layer. Before pouring the concrete for the floor slab, a gliding layer consisting of two layers of plastic sheeting is applied between the waterproofing and the concrete. Protect the waterproofing layer from mechanical damage when continuing with the application.
Always adhere to the specifications in the respective Technical Guidelines.