Anti-runway penetration bombs are systems involving bombs or bomblets which are designed to disrupt the surface of an airfield runway (or tarmac) and make it unusable for flight operations.
One early system was the Matra Durandal, a single 450 lb bomb with rocket booster and 330 lb warhead. Another, now withdrawn from service, was the JP233, a submunitions system in which an aircraft would fly over the target runway and a mixture of penetrating and anti-personnel submunitions would be dispensed to both crater the runway and impede repair work.