alt Hacker NewsThere was recently a crisis in older publicly constructed buildings in the UK that were built [0].The aerated concrete had a limited lifespan especially if it was damaged and had contact with water.
Lots of people looking for compensation and claiming mis-representation.
AAC is typically a non structural material. The UK crisis involved steel reinforced AAC beams that were used (of all places) to support roofs of schools. UK turned out to be a rainy place, the rain infused into the cellular structure and corroded the steel, with disastrous consequences. It's a very particular use case of a very particular product, not relevant to the wide majority of AAC uses around the world.