Project information

In order to be able to produce extremely slender or highly perforated structures such as the facade elements of the Southern Danish University in Odense, the UHPC concrete must ensure high stiffness combined with ductility. This is achieved by adding steel microfibers. The use of stainless steel fibers enables durable highly aesthetic surfaces that can withstand stressful environmental conditions. In addition, polypropylene fibers can be used in UHPC components to increase the fire resistance of the ultra-high strength concrete.

A whole series of parameters determine the material properties of UHPC: aggregate, binder and their packing density, fiber geometry, fiber content and steel grade. As a rule, steel fibers are the most economical solution for HPC and UHPC projects. However, depending on the requirements of the UHPC components, a mixture of different fiber types and, in many cases, a combination reinforcement of prestressed and / or slack reinforcement may also be suitable.

Thanks to the extreme rigidity and high ductility of fiber-reinforced concrete, exceptionally thin UHPC components with an extremely low dead weight can be realized. With the appropriate fibers or fiber mixtures, you can also achieve highly dense and wear-resistant surfaces, up to 20 times the resistance to shear deformations and to short-term dynamic extraordinary impacts such as explosion compared to conventional concrete, as well as increased stiffness of the concrete even in the cracked state. The combination of these advantages makes architectural masterpieces possible and ensures the safety and durability of new and existing buildings.