Reinforced autoclaved aerated concrete (RAAC) is a lightweight form of concrete that was used in schools, colleges and other building construction from the 1950s until the mid-1990s, according to ...

The government said on Tuesday that 174 schools contain concrete at risk of collapse, up from its previous estimate of 147. The issue centers around “reinforced autoclaved aerated concrete,” a ...

A total of 231 schools in England were confirmed to have Raac, or reinforced autoclaved aerated concrete, in the most recent government list issued last month. Due to this, many of these schools ...

Reinforced autoclaved aerated concrete (Raac) has been found in more than 100 schools, forcing them to either fully or partially close. However, other buildings are believed to contain Raac ...

Reinforced autoclaved aerated concrete, known as RAAC, is pre-cast in a factory, typically into planks, before being taken to a construction site where it can be quickly assembled into part of a ...