The Strength of Ancient Roman Concrete

Concrete walls at the Hamaoka Nuclear Power Plant were found to have become stronger over their lifetime
Concrete walls at the Hamaoka Nuclear Power Plant were found to have become stronger over their lifetime

In a list of walls that you’d want to stay strong, those in a nuclear reactor would be near the top. Now, researchers have found that the walls in a decommissioned power plant in Japan have not only kept their strength but have actually gotten stronger with use, thanks to a rare mineral also found in ancient Roman concrete.

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