So much BASF went into the Gotthard Base Tunnel

Under construction for nearly 20 years, the Gotthard Base Tunnel has now been officially inaugurated. Around four million tons of concrete went into the 57-km tunnel – around forty times as much as into the Burj Khalifa skyscraper in Dubai, the tallest building in the world. BASF supplied concrete admixtures, cement injections for sealing, and fire protection mortar for the construction project.

In the 20-km long construction section between Erstfeld and Sedrun, admixtures from BASF were added to the concrete used in the two parallel tunnel tubes and the cross-connections that interlink the...