What is Raac and why is it forcing schools to shut buildings? | Schools | The Guardian

Reinforced autoclaved aerated concrete is prone to sudden failure when it deteriorates – and many of school buildings in England are past designed lifespan
— Read on www.theguardian.com/education/2023/aug/31/what-is-raac-reinforced-autoclaved-aerated-concrete-schools-buildings-england-close