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How the Ancient Romans Made Better Concrete Than We Do Now

Stashed in: History!, Geology!

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Concrete was the foundation (see what I did there?) of Roman urban life. No concrete, no plumbing. No plumbing, no growth above what the rivers could handle. Why was Roman concrete so good?

I see what you did there!

The Roman recipe used by the team involves adding volcanic rocks to a liquid mortar.

So it was volcanic rock that made Roman concrete so much better?

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