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Roman Concrete That Heals Itself | Science News
Ancient Roman concrete, discovered in a 1,900-year-old latrine near Rome, is revealing secrets that could revolutionize modern construction—this stuff didn’t just last millennia, it got stronger with age. Scientists now know that tiny calcite crystals formed inside cracks over centuries, sealing them like nature’s own glue. What once looked like sloppy mixing might have been a genius self-healing design: water triggered a mineral reaction that reinforced the concrete. Using advanced imaging, researchers mapped a calcite web woven through the material, turning the latrine into a living lab…
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