Roman Concrete Research by David Moore

romanconcrete.com

The Roman Pantheon is the largest (43.4m dia.) unreinforced solid concrete dome in the world. It was built by the emperor Hadrian almost 2,000 years ago.

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How the pantheon has lasted 2000 years without steel in its concrete

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This famous building stands in the business district of Rome--much as it was built some 18 centuries ago. Amazingly, it has withstood the ravages of both the elements and war permitting a firsthand view of a unique product constructed by Roman hands. Now, it is exposed to acid rain and fumes from passing automobiles…