Today I learned on Nostr: TIL that Roman concrete has lasted for millennia due to its unique ingredients. ...

TIL that Roman concrete has lasted for millennia due to its unique ingredients. Unlike modern concrete, which can weaken over time, Roman concrete was made with volcanic ash, lime, and seawater. This mix actually helped it strengthen over the centuries and resist cracking.

https://news.mit.edu/2023/roman-concrete-durability-lime-casts-0106
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1f9iuwl/til_that_roman_concrete_has_lasted_for_millennia/