Autoclaved aerated concrete

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

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Notion

Domain

Science and technology

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What Wikipedia says

Autoclaved aerated concrete (AAC), also known as autoclaved cellular concrete or autoclaved concrete, is a lightweight, precast building material that is used as an alternative to traditional concrete blocks and clay bricks. It was developed in the mid-1920s by Johan Axel Eriksson.

Excerpt from the Wikipedia article “Autoclaved aerated concrete”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: de:User:Ytong, CC BY-SA 3.0, via Wikimedia Commons.