The second major international cellular concrete brand, Hebel, goes back to company founder and technician Josef Hebel from Memmingen. Another brand, “Siporex”, was established in Sweden in 1939, and presently licenses and owns plants in 35 locations around the world. "Yxhults Ånghärdade Gasbetong" later became the first registered building materials brand in the world: Ytong. In 1929, production started in Sweden in the city of Yxhult. Johan Axel Eriksson (1888–1961), working with Professor Henrik Kreüger at the Royal Institute of Technology. Residential house constructed of AAC (Siporex) blocks in Kuopio, Finland.ĪAC was perfected in the mid-1920s by the Swedish architect and inventor Dr. History House construction site using AAC (Ytong) blocks in Ablis, France. Names Īutoclaved aerated concrete is also known by various other names, including autoclaved cellular concrete (ACC), autoclaved concrete, cellular concrete, porous concrete, Aircrete, Thermalite, Hebel, Aercon, Starken, Gasbeton, Airbeton, Durox, Siporex (silicon pore expansion), Suporex, H+H and Ytong. In addition to their quick and easy installation, AAC materials can be routed, sanded, or cut to size on-site using a hand saw and standard power tools with carbon steel cutters. Exterior construction requires some type of applied finish, such as a polymer-modified stucco or plaster compound to guard against the elements, or covered with siding materials such as natural or manufactured stone, veneer brick, metal or vinyl siding. Lightweight concrete is used, for example, for exterior and interior walls, firewalls, wet room walls, diffusion-open thermal insulation boards, intermediate floors, upper floors, stairs, opening crossings, beams and pillars. ĪAC products can be used in almost all construction, such as industrial buildings, residential houses, apartment buildings, and townhouses. Forms include blocks, wall panels, floor and roof panels, cladding (façade) panels and lintels. Developed in the mid-1920s, AAC provides insulation, fire, and mold-resistance. AAC products are cured under heat and pressure in an autoclave. It is composed of quartz sand, calcined gypsum, lime, portland cement, water and aluminium powder. Palette stacked autoclaved aerated concrete blocks.Īutoclaved aerated concrete ( AAC) is a lightweight, precast, cellular concrete building material, eco-friendly, suitable for producing concrete-like blocks. Sectional view of autoclaved aerated concrete. For lightweight blocks, see Expanded clay aggregate. For cellular concrete (foamed concrete), see Types of concrete § Cellular concrete.
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