Post #5 by onepoorguy on the Science, Technology, Engineering and Mathematics board

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And why was it so durable?

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An unexpected ancient manufacturing strategy may hold the key to designing concrete that lasts for millennia.

Ancient Romans were masters of engineering, constructing vast networks of roads, aqueducts, ports, and massive buildings, whose remains have survived for two millennia. Researchers have spent decades trying to figure out the secret of this ultra durable ancient construction material, particularly in structures that endured especially harsh conditions, such as docks, sewers, and seawalls, or those constructed in seismically active locations.

https://www.sciencedaily.com/releases/2023/01/2301...

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I saw that a few days ago. It was really interesting how the concrete almost literally healed itself. Roman concrete overall is superior to what we mass-produce today. I suspect we won't change our recipe as I'm sure making it Roman style would be more expensive.

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found this the other day and thought it might be of interest. 12 minute video by dr. ben miles, who does a good overview of the topic.

https://www.youtube.com/watch?v=nXS1g5HTYJw

best,

mike

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Fascinating how the hot mix has self-healing properties and actually becomes stronger in the process.

Troy

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