Guido is off to attend a conference in Baden near Vienna. Even the journey there by motorway turns out to be an illustration of the last few weeks at the institute. Be it a tunnel or any one of the various types of bridge, whether curved or straight with a framework – here we see all manner of different construction methods that would be impossible without concrete and steel, some of them also prestressed. Once he has arrived in Vienna, Guido takes a break from UHPC for a change, before presenting the results of the experiments on the ultra-high performance building material in the conference hall at the casino in Baden...