Joint bridging

Bridging building and dilatation joints is crucial, especially if a foundation with a foundation earth electrode has building or dilatation joints. These must be effectively bridged to ensure good conductivity.

Inside the foundation, bridging can be achieved using an expandable connection. A foamed plastic block, which is embedded in the concrete, contains a loop of Banderder. This adapts to the foreseeable displacements of the concrete elements. Please note that such bridging can no longer be controlled after concreting.

Alternatively, there is the option of a visible connection. Connection points are created on both sides of the joints and connected with a flexible cable. This type of visible bridging can be checked and verified at any time. In addition, the connection points can be used for earth conductors and equipotential bonding conductors with little effort.

• The earth conductors of individual concrete segments must be continuously connected
• Cast-in dilatation bridges must be corrosion-resistant.
• Minimum cross-section: 50 mm² Cu or 75 mm² stainless steel (V4A).