Until now, autoclaved aerated concrete (AAC) was widely used in the construction industry mainly as a relatively simple (commodity) wall building material. The need and regulatory pressure for green, energy neutral buildings for residential housing and nonresidential constructions is becoming strong

When I think of concrete buildings, I think of dense, heavy concrete with a high environmental impact: Cement manufacturing accounts for 5 percent of global CO2 emissions from human activity, a staggering total for one building material. But utilizing more environmentally-friendly alternatives, such

Autoclaved aerated concrete (AAC) is a light precast foam concrete building material. It is made with a combination of cement, fine aggregates and a chemical that give rise to the fresh mixture like bread dough. This type of concrete actually contains 80 percent air. The material is then moulded and

AAC was perfected in the mid-1920s by the Swedish architect and inventor Dr. Johan Axel Eriksson, working with Professor Henrik Kreuger at the Royal Institute of Technology. It went into production in Sweden in 1929 in a factory in Hallabrottet and quickly became very popular. Siporex was establishe