Pre stressing steel was originally developed for bridges and it was Eugene Freyssinet who in 1928 invented the idea of prestressing wires bonded to the concrete. Since 1936, it has been widely used in bridge construction. Since 1950, it is common to precast solutions for precast segments. However, it is in Denmark post tensioned in-situ concrete structures are rather new  in buildings such as decks and beams. Ingholt Consult has for many years accumulated rich expertise in this field and it is a good solution when, for example achieving large spans of the deck and beams with few supports. Ingholt Consult has many solutions for post-tensioned concrete solutions, whether it’s floors, decks, beams or walls.