Structural Performance

Outstanding structural performance

Autoclaved aerated concrete is extremely strong and durable despite its light weight. AAC's solidity, which comes from the calcium silicate that encloses its millions of air pores and from the process of curing in a pressurised steam chamber, an autoclave. Its excellent mechanical properties makes it the construction material of choice for earthquake zones.

The product's light weight ensures that the foundations of a building are lightly loaded, yet it is strong enough to bear several floors. It retains its properties for the entire life of a building without ageing. AAC resists wind, rain and storm and does not decay or rot. In general, changing outside temperatures cannot damage AAC. Its very limited shrinkage and thermal expansion prevent the formation of cracks in masonry.

AAC also has excellent resistance to chemicals and pollutants and, due to its alkaline nature, can withstand acid rain.

6ICAAC 2018 in Potsdam

From the 4th to the 6th of September 2018 in Potsdam, Germany will be held the 6th International Conference on Autoclaved Aerated Concrete

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New category Recommendations

Prepared by our Technical Committee you will find under this new category recommendations for design of reinforced AAC.

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Earthquake statement

Lightweight-Construction materials improve earthquake Resistance in Buildings: In 2016, a series of devastating earthquakes in Italy led to the harrowing loss of life. This tragedy was partially the result of the buildings and infrastructure being severely damaged in the process.

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Sustainable Energy Week 2017

... took place between 19 and 25 June 2017. See more at

Organised by local public and private organisations, Energy Days are activities and events that raise awareness of energy efficiency and renewables.

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EU Sustainable Energy Week High Level Policy Conference

The EU needs better policy to unlock zero energy buildings’ potential | Joint Press Release

The Autoclaved Aerated Concrete Industry and Builders’ merchants call for clear definitions of energy efficient buildings and financial support for sustainable logistics.

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EU Sustainable Energy Week 2014 - Save the date

The Sustainable Energy Week 2014 will take place between 23 and 27 June 2014. See more at

EAACA is pleased to invite you to a High Level Policy Conference as part of the EU Sustainable Energy Week 2014.

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