Leave modern concrete structures in the ocean, and a few decades later they'll be in need of replacing, or at least a serious patch job. Meanwhile, ancient Roman concrete is still standing strong after thousands of years, and not only does it resist damage, but the salt water actually makes it stronger. X-ray examinations have found the key to the mixture's incredible longevity, which could help improve modern recipes.
.. Continue Reading Just add seawater: Ancient Roman concrete gets stronger over timeCategory: Materials
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from New Atlas http://ift.tt/2soD2Wl
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