this post was submitted on 21 Sep 2023
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[–] overzeetop@lemmy.world 11 points 1 year ago

I’d be curious what their measure of concrete is. The plain stuff has 3000psi compressive strength and a usable modulus of rupture of around 250psi. And if it survives re-wetting / over-drying and aging.

PLA is (very) roughly 20x that.