Fast Non-Destructive Localisation of Prestressing Steel Fractures in Post-Tensioned Concrete Bridges

Professor Reinhardt and his employees are besides us at the Technische Universitat Berlin the experts in using the permanent magnetism to determine the health of prestressed concrete structures to find out whether they are free of prestressed wire breakages or whether they must be repaired. Professor Reinhardt enjoys an extremely high technical reputation in civil engineering, this does not have to be emphasized. I would like to stress that Professor Reinhardt is a quite special colleague regarding his kindness, his helpfulness, humanity and modesty. One has many comrades in arms but only few colleagues. I would like to take this opportunity to thank him for much good advice and for the fact, that I have a trusting, reliable and high appreciated colleague in him. I would like to now turn to a topic that connects us both.