Repairs to reinforced autoclaved aerated concrete

Reinforced autoclaved aerated concrete RAAC was a popular choice as structural material in educational, commercial and industrial buildings between 1950 and 1980. It was primarily used for pre-cast wall panels and flat roof planks in factory and warehouse blocks. 'Siporex', for example, was a common proprietary brand of RAAC wall panel. However, the term autoclaved aerated concrete AAC is a slight misnomer in that it is not a true form of concrete. AAC is not concrete in its constituent...