this post was submitted on 10 Jun 2026
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Concrete doesn't last, stone does. Brick to a lesser extent.
*Concrete with rebar. Roman concrete has lasted plenty long. Though the lime in it helps.
That is true. Roman Concrete is still standing 2k years on. Ours lasts decades, maybe a century if well done.
They used ash from Mount Aetna in Sicily to make some of it. I forget the thing with the lime, how that was different than what we use?