“The material is liable to fail without visible deterioration or warning.” https://en.wikipedia.org/wiki/Reinforced_autoclaved_aerated_concrete https://en.wiki

“The material is liable to fail without visible deterioration or warning.” https://en.wikipedia.org/wiki/Reinforced_autoclaved_aerated_concrete https://en.wikipedia.org/wiki/Reinforced_autoclaved_aerated_...