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7th International Conference on Autoclaved Aerated Concrete (7ICAAC)


The 7th International Conference on Autoclaved Aerated Concrete (ICAAC) will take place from 6–8 September 2023 in Prague, Czech Republic.

The conference will bring together numerous international experts from scientific institutes, manufacturers of AAC, raw material suppliers, AAC plant manufacturers and associations connected to the EAACA. Individuals from the building sector, such as architects, planners, civil engineers, builders and investors are cordially invited as well.

Key Topics

·       100 years of AAC – global challenges and solutions of structural engineering with AAC

·       Sustainability of AAC – from the production to the building level

·       Global challenges of energy supply

·       Challenges on the building-site

·       Raw materials for AAC production

·       Structural engineering with AAC

·       Seismic design with AAC

·       Digitalization, modelling, simulation

·       Production, process engineering

·       Building physics: heat-, moisture-, sound-protection

·       Durability of AAC

·       Test methods, codes, standards

·       Mineralogy, C-S-H-chemistry

·       Porosity, sorption properties

EAACA: the voice of the AAC industry

The European Autoclaved Aerated Concrete Association (EAACA) promotes the interests of producers of autoclaved aerated concrete and their national associations across all of Europe. Founded in 1988, EAACA has members from 18 countries operating more than 100 production sites and producing around 16 million m3 of AAC per year, enough to build about 350,000 homes.

EAACA is the voice of the AAC industry at European level. The European Institutions and the legislation they create can have a direct effect on manufacturers, for example by setting standards for products or buildings that use them. They also shape the market indirectly by defining framework conditions such as climate and energy policy that in turn translates into requirements for buildings. The European Commission will also continue to push forward its indicator framework assessing how sustainable building materials are. This is one of the reasons behind EAACA’s net zero roadmap.

Net zero roadmap

EAACA has set out a roadmap, aligned with the Paris Agreement 2015, for Autoclaved Aerated Concrete products to reach net-zero emissions by 2050, with the potential to become carbon negative. The intermediate target will be to reduce AAC emissions by 30% by 2030. 

Going beyond net-zero

The EAACA has been taking its environmental responsibility seriously for decades. Despite AAC’s miniscale 0.09 to 0.02% share of emissions within the European Union’s building stock and construction sector, the association is intent on reaching, and surpassing, the net-zero target. Fully implemented, the roadmap will reduce emissions from 180 kg to -70 kg of CO2 per m3 by 2050, thereby removing more carbon from the atmosphere than is produced. As Torsten Schoch, General Secretary of the EAACA, emphasises, ‘It is not enough to have net-zero emissions by 2050. You must provide solutions for carbon capture after 2050.’

Eurovea tower in Slovakia - AAC was used for this building.

Previous Conference

The 6th International Conference on Autoclaved Aerated Concrete (University of Potsdam, 2018), set new standards for future conferences. “There is enormous interest throughout the world in constructing with AAC and opportunities for exchange should occur more frequently at an international level between companies and researchers in future,“ were two the main conclusions. AAC is nowadays employed at a global level in the construction of residential, commercial and industrial buildings. The background of those attending the conference, with experts from the fields of science, research, industry and associations plus those engaged in studies, was as diverse as the programme. 375 guests from 41 countries were present in Potsdam; the top seven countries for participants were Germany, Poland, China, The Netherlands, Turkey, Italy and Russia. 23 countries attended for the first time, amongst them: Argentina, India, Israel, South Africa, Thailand, Vietnam, Taiwan and Malaysia.


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