Why was Roman Concrete Forgotten during the Middle Ages?

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For centuries, concrete was everywhere in Roman Italy: in the awesomely durable breakwaters of artificial harbors, in the soaring vaults of great baths, in the foundations of the Colosseum, and - of course - in the spectacular dome of the Pantheon. But during late antiquity, concrete all but vanished from the Mediterranean world, and would not be used widely again until the twentieth century. This video explains why.

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Chapters:
0:00 Introduction
0:39 Understanding Roman concrete
1:29 Early experiments
2:25 The apogee
3:33 Squarespace!
4:19 Geographic limits of Roman concrete
5:00 The decline of concrete
6:28 Final notices
7:26 Not forgotten, but gone

Thanks for watching!

Видео Why was Roman Concrete Forgotten during the Middle Ages? канала toldinstone