Simon Phipps
I always wondered how the concrete the Romans used (such as to cast the dome of the Pantheon in Rome) has lasted so long. Some MIT researchers have just discovered the answer. https://news.mit.edu/2023/roman-concrete-durability-lime-casts-0106
Riddle solved: Why was Roman concrete so durable?

Researchers have discovered ancient Roman concrete-manufacturing strategies that incorporated self-healing. Applying this knowledge toward modern cement production, they hope to improve the material’s environmental impact.

MIT News | Massachusetts Institute of Technology
Jan 7, 2023 at 3:04pmWeb
Show threadStefano MaffulliJan 7, 2023
@webmink oh, scientists from another country who have never spent time with the elders brick workers in Italy. My father would have explained that to the MIT researchers if they asked him :)