Also means
autoclaved aerated concrete block
Usage Note
Porenbetonstein (e.g. Ytong) is a lightweight, highly insulating masonry unit made from aerated concrete; it can be cut with a handsaw and is easy to work but has lower compressive strength than solid brick.
Examples
"Für die Innenwände wurden Porenbetonsteine verwendet, da sie leicht und gut dämmend sind."
Natural Translation
Aerated concrete blocks were used for the interior walls as they are light and thermally efficient.
Literal Translation
For the interior-walls were aerated-concrete-blocks used since they light and well insulating are.

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