this post was submitted on 28 Oct 2023
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Solarpunk Urbanism

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A community to discuss solarpunk and other new and alternative urbanisms that seek to break away from our currently ecologically destructive urbanisms.

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[–] poVoq@slrpnk.net 4 points 1 year ago (1 children)

Somehow this video is missing the part where is shows the actual foam-crete structure inside...

But anyways, this kind of non-autoclaved foam-crete is very easy to make. Basically you only need cement and aluminum powder. The powder reacts with the wet cement to create gas that bubbles up the cement.

The main problem with this is that the result is very weak. So you either need to make some sort of ferrocement sandwich structure or cut it into smaller blocks to autoclave it for extra strength. The latter process is quite energy intensive and needs a large pressure vessel, but those autoclaved foam-crete blocks are quite commonly used as building material in Europe.

[–] ex_06@slrpnk.net 2 points 1 year ago

Somehow this video is missing the part where is shows the actual foam-crete structure inside...

Yep, very very annoying w_w

[–] spacecowboy@sh.itjust.works 3 points 1 year ago* (last edited 1 year ago) (1 children)

Do you have a different link? This one stalls every 3 seconds.

[–] poVoq@slrpnk.net 4 points 1 year ago

You can just replace the main domain with youtube.com, the /watch part is the same.