Guest videos: “Roman Concrete” Good for Volcanoes and Buildings!

Every volcano has its own chemistry. The chemistry of the “pozzolana” ash produced by Italy’s Campi Flegri is especially useful when the pressure builds up.

Not mentioned in that video is the third key ingredient: sea water, which can strengthen the concrete over time.


Featured image: Skeeze, at Pixabay. Public domain.


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