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Wednesday, 16 March 2011

High-Tech Concrete Technology Has a Famous Past
March 16, 2011
Almost 1,900 years ago, the Romans built what continues to be the world’s largest unreinforced solid concrete dome in the world—the Pantheon. The secret, probably unknown to the Emperor Hadrian’s engineers at the time, was that the lightweight concrete used to build the dome had set and hardened from the inside out. This internal curing process enhanced the material’s strength, durability, resistance to cracking, and other properties so that the Pantheon continues to be used for special events to this day.
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