The tension is mounting! A prestressed UHPC beam needs to be made for the tests that lie ahead. This requires meticulous work. First, the strands are prestressed on the prestressing bed. Then the formwork is assembled and fixed in place. Now they can start to pour the UHPC concrete. It needs to flow into every corner, ideally without any air inclusions. After a day has passed, the formwork can be stripped from the beam. Did everything go to plan? High tension is guaranteed...