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Scientists Discover The Secret Of Enduring Roman Concrete

When exposed to sea air, modern concrete can deteriorate within decades. But remnants of Roman seawalls, constructed 2,000 years ago, are not only still standing, they’re getting stronger. Romans used volcanic ash in their concrete, and its reaction with seawater produces growing crystals that strengthen the material to this day. Scientists believe if this material can be reproduced, it would have great value in building future walls to combat rising sea levels.

Read more about this ancient Roman concrete.

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