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this post was submitted on 28 Jun 2024
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... "using 3D printing – but instead of concrete, they used sand combined with a binder." ... o.k.
So.... Mortar.
IT'S TOTALLY DIFFERENT BRO
Concrete is something like a tenth of humanity's total CO2 emissions, so if this is something that lets us use less concrete then that's actually great
Plus structurally, even if it were off-the-shelf concrete vs mortar, it's still structurally different, so I'm sure that also makes a difference.
Mostly I was just making fun of the phrasing and distinction without actually clarifying the difference.