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> do you have any classic examples of bridges or buildings in continuous use for thousands of years? of course not, it would wear out. The Pantheon in Rome is
by yorwba 5y ago
> do you have any classic examples of bridges or buildings in continuous use for thousands of years? of course not, it would wear out.
The Pantheon in Rome is famous for having the world's largest unreinforced concrete dome: https://en.wikipedia.org/wiki/Pantheon,_Rome https://en.wikipedia.org/wiki/Pantheon,_Rome
Various Roman bridges are still in use: https://en.wikipedia.org/wiki/Ponte_di_Tiberio_(Rimini) https://en.wikipedia.org/wiki/Ponte_di_Tiberio_(Rimini)
Being in continuous use makes it more likely that a building will last long, since otherwise people might tear it down to use the stones elsewhere. (E.g. what happened to the Colosseum.)
- Cupertino95014 5y agoIf you read up on "Roman concrete" you find out that it used a volcanic sand "pozzolana" [1] which is difficult to find in some parts of the world. There was, supposedly, some American professor trying to find a recipe for concrete that was as good as the Roman type but used more available materials. I don't know the current status. [1] https://en.wikipedia.org/wiki/Pozzolana https://en.wikipedia.org/wiki/Pozzolana