Durability variations in reinforced autoclaved aerated concrete (RAAC) – extended abstract

Reinforced Autoclaved Aerated Concrete (RAAC) was a very common form of construction in the UK and elsewhere 1970s, many buildings are now coming to end their design life. Although much is known regarding new RAAC (and AAC), concerns exist durability, hence current structural integrity 40-50 year old panels, which use critical infrastructure such as hospitals, schools government buildings. Anecdotal evidence preliminary site observations suggests that there considerable variation material properties between different within same structure, across structures, locations ages. The aim this research therefore investigate understand variability surface resistivity, sorptivity, permeability, compressive strength, density single 2400mm panel, amongst panels from expected demonstrate performance, will have significant implications for repair, monitoring management these infrastructure.