Raac found in some buildings at Heathrow and Gatwick airports

Buildings now being monitored as concrete that recently closed hundreds of schools detected at UK's two biggest airports

The crumbling concrete that recently closed hundreds of UK schools has also been found within two of Britain's biggest airports, it has been revealed.

Both London Heathrow and Gatwick confirmed that some of their buildings contain reinforced autoclaved aerated concrete (Raac) and were being monitored.