Autoclaved Aerated Concrete

The products referred to are blocks of various formats made of autoclaved aerated concrete (AAC). AAC belongs to the group of porous steam-hardened lightweight concrete. The autoclaved aerated concrete products are made of quartzite or silica sand, cement, lime, gypsum, aluminium, recycled AAC powder and finally recycled return slurry (closed-loop). All raw materials are mixed with excess water at certain proportions. Mixed slurry formulation is then poured into the casting moulds. After expansion-aeration stage, the aerated concrete blocks are cut and then they are put into the autoclave in groups for steam curing. Having a porous composition, EGE AACs provide a high order of thermal insulation. It is an ideal material that offers significant savings in the initial outlay and running costs of heating or cooling buildings as well as an opportunity for exploiting other potential benefits.

As a low-density solid masonry material, EGE AACs significantly improve the seismic performance and safety of buildings by reducing overall building loads with its low dead weight. EGE AAC is a Class 1 fireproof material that can withstand temperatures up to 1200°C. EGE AACs are manufactured to exact dimensions with very close tolerances, hence providing high levels of accuracy in setting out. Its smooth faces and sharp arises allow fair-faced finishing with or without liquid coatings. Similarly, rendering, where such a finish is desired, can be kept extremely fine. While it is possible to construct an entire building from the foundations up using EGE AAC components, the many extraordinary properties of the material also allow its use for artwork, such as sculptures, and for other decorative purposes.

The product might be produced in sizes between 5-40 cm (in multiples of 2.5 cm), as well as in sizes 6 - 7 - 8.5 - 9- 13.5 - 22 - 23. The autoclaved aerated concrete products are used in single and multi-floor houses, social and touristic facilities as well as commercial and industrial buildings, providing economy, quality, comfort and speed in constructions. The AAC products are used as interior or exterior walling in all kinds of framed and/or bearing-wall construction. They are used as permanent infill in ribbed floor-deck construction. The AAC products are also used for casting bond beams, and they are used as thermal cladding to reinforce concrete surfaces.