Heathrow and Gatwick airports have announced that they are closely monitoring the presence of porous reinforced autoclaved aerated concrete (Raac) on their sites in the wake of recent school closures connected to the material. Both airports have acknowledged prior discoveries of Raac but are now reevaluating their management plans in light of widespread media coverage and concerns.
Heathrow Airport stated that it had previously identified Raac within its infrastructure and had taken steps to ensure its safe containment until permanent solutions could be implemented. This material, known for its tendency to crumble, has come under scrutiny recently due to its discovery in various schools and public buildings, resulting in closures since the beginning of September.
