Durandal

The Durandal is an anti-runway penetration bomb developed by the French company Matra (now MBDA), designed to destroy airport runways and exported to several countries. A simple crater in a runway could be filled in without issue, so the Durandal uses two explosions to displace the concrete slabs of a runway, thus making the damage to the runway far more difficult to repair. The bomb is named after a mythical medieval French sword.