Autoclaved Aerated Concrete is a Lightweight, Load-bearing, High-protecting, Strong structure item, which is given in a full scope of sizes and qualities. AAC Blocks is lightweight and associate with the red blocks AAC squares are multiple times lighter.AAC is created from the natural materials lime, sand, cement and water, and a small number of the growing agent. After processing and moulding, it is then autoclaved below heat and pressure to produce its unique properties. AAC has a great thermal protector and acoustic reflection properties. AAC is fire and pest resistant and is economically and environmentally better to the more common structural building elements such as concrete, wood, brick and stone.At the point at AAC is mixed and cast in structures, a few mixture responses occur that give AAC its lightweight (20% of the heaviness of cement) and hot properties. Aluminium powder reacts with calcium hydroxide and water to frame hydrogen. The hydrogen gas bubbles and copies the size of the crude mixture making gas rises to 3mm (⅛ inch) in length across. Toward the end of the frothing system, the hydrogen disappears into the air and is removed via air. AAC Blocks is a separate and unique type of construction material due to its superheat, fire and sound protection, AAC blocks are lightweight and offers latest workability, versatility and stability. Its main elements include sand, water, quicklime, cement and gypsum. The chemical resistance due to the aluminium paste provides AAC with its different porous structure, lightness, and surrounding properties, totally different related to other lightweight solid material
AAC was perfected in the mid-1920s by the Swedish architect and inventor Dr. Johan Axel Eriksson, working with Professor Henrik Kreüger at the Technology. The process was patented in 1924. In 1929, production started in Sweden at the city of Yxhult. From "YxhultsÅnghärdadeGasbetong" later became the first registered building materials brand in the world: Ytong. Another brand “Siporex” was established in Sweden in 1939 and presently licences and owns plants in 35 locations around the world. The second major international cellular concrete Hebel brand goes back to company founder and technicians Josef Hebel from Memmingen. In 1943, the first Hebelplant was opened in Germany.