RAAC is currently in the news, with more than 100 schools in England fully or partially closed over concerns of possible collapse.
What is RAAC?
Reinforced autoclaved aerated concrete (RAAC) is a lightweight material used primarily in flat roofing but also in floors and walls between the 1950s and 1990s.
It is cheaper than ordinary concrete but is less durable, with an estimated lifespan of 30 years. The aerated nature of the concrete makes it weaker and vulnerable to moisture ingress, which can result in reinforcement corrosion.
How can Sandberg Help?
As a leading independent construction materials consultancy, Sandberg can provide guidance and carry out inspections for RAAC. Find out more about Sandberg RAAC Identification Surveys and Testing.