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2. Composition of aerated concrete
This autoclaved silicocalcareous material is suitable for densities ranging from 100 to 800 kg/m 3 . Current construction applications, depending on the physical and mechanical performance required, use cellular concretes with densities ranging from 350 to 550 kg/m 3 . Thus, 1 m 3 of raw materials is needed to produce 5 m 3 of cellular concrete, i.e. a material made up of ∼ 80% air. This volume of air takes the form of a set of cells (micro-cells and macro-cells) uniformly distributed throughout the material (figure 1 ), which gives the material its thermal characteristics.
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Composition of aerated concrete
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Bibliography
- RILEM, ARONI (S.), DE GROOT (G.J.), ROBINSON (M.J.), SVANHOLM (G.), WITTMAN (F.H.) - Autoclaved Aerated Concrete : properties, testing and design - E & FN SPON.
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Standards and norms
- Specifications for masonry units – Part 4: Autoclaved aerated concrete masonry units (classification index: P 12-024-1). - NF EN 771-4, -
- Specifications for masonry units – Part 4: Autoclaved aerated concrete masonry units – National supplement to NF EN 771-4:2004 and its amendment A1:2005 (classification index: P 12-024-1/CN). - NF EN 771-4/CN, -
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