A concrete product for a building structure

摘要

The present invention concerns a concrete product (1) for a building structure, wherein at least one steel attachment rail (2) is provided at the exterior surface of the concrete product for attachment of at least one building element to the concrete product by welding. By providing attachment rails on the exterior surface of the concrete product, it becomes possible to attach building elements, such as fire insulation panels (4), anchoring means for ventilation ducts, suspended ceilings and the like, to the concrete elements. In particular, it is found advantageous to attach a fire-retarding insulation layer without penetrating anchoring screws or the like into the concrete floors thereby risking a reduction of the strength of the concrete element, e.g. exposing the steel reinforcement to humidity, providing cracks in the hollow core structure, etc.