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Rammed earth is more abundant, potentially cheaper, and has far better sound and thermal insulation properties:

https://www.bbc.com/future/article/20220705-the-sustainable-...

It is more labor-intensive but easily automated, at least one start-up has worked/is working on this:

https://www.youtube.com/watch?v=4TXj5IIkUIY

Rammed earth panels can also be prefabricated and delivered to build site via truck:

https://www.youtube.com/watch?v=WFddMSRel4A

The city of Shibam in Yemen shows how a high-rise rammed earth/adobe city might look. It's possible to adapt this technique to wet climates with appropriate plasters and maintenance:

https://www.youtube.com/watch?v=zm8OGIZ7tag



Past thread about rammed earth:

https://news.ycombinator.com/item?id=32042797




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