Built in rome in the 2nd century ad the pantheon is a massive concrete building capped by an impressive 142 foot high dome the largest in the ancient world.
Pantheon roof concrete.
It is the only masonry dome to not require reinforcement.
Recent studies reveal several major cracks in the dome but it still functions unimpaired.
The pantheon in rome italy is an example of roman concrete construction roman concrete also called opus caementicium was a material used in construction during the late roman republic through.
Unrecognized the design of this ancient concrete building reveals unparalleled features not encountered in modern design standards.
With trust in the future the pantheon will survive.
All other extant ancient domes were either designed with tie rods chains and banding or have been retrofitted with such devices to prevent collapse.
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The pantheon is the best preserved ancient building in rome.
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The massive corinthian columns supporting the portico weigh 60 tons each.
The roof of the pantheon was the largest dome rome ever constructed and after nearly 2000 years is still the largest unreinforced concrete dome in the world.
In 609 a d the pantheon was the first pagan temple to be converted into a christian church.
It is also substantially larger than earlier domes.
The step rings can be seen on the outside of the dome.
As the height of the dome rises the concrete was mixed with lighter and lighter stone material the top is largely pumice.
With a diameter that measures 43 4 meters the dome of the roman pantheon ranks as the world s largest dome made of unreinforced solid concrete.
The pantheon still holds the record for the world s largest unreinforced concrete dome.
It s also completely unreinforced there s no rebar in there.
The pantheon itself is still standing.
The pantheon dome remains the single largest unreinforced concrete dome in the entire world the breathtaking dome of the pantheon at about 142 feet in diameter the pantheon s dome is bigger even than the dome of st.