There was a time when steel and concrete used to be two rivalling building materials. Today, however, architects combine the two materials, thus profiting from the advantages of both and soaring to [...]

There was a time when steel and concrete used to be two rivalling building materials. Today, however, architects combine the two materials, thus profiting from the advantages of both and soaring to previously unknown heights.
This episode explores the differences between steel and concrete construction and the development of modern composite building, showing how Arcelor Mittal employs its worldwide know-how in order to contribute to building some of the highest towers in the world.