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To: skinowski who wrote (510812)10/1/2012 8:01:55 PM
From: LindyBill1 Recommendation  Read Replies (1) | Respond to of 793989
 
The unenforced ones can last.

Pantheon, Rome
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Not to be confused with The Parthenon or Panthéon, Paris.
For other uses, see Pantheon (disambiguation).
Pantheon Location Built in Built by/for Type of structure Related articles

Pantheon
Regione IX Circus Flaminius
126 AD
Publius Aelius Hadrianus
Roman temple
Marcus Vipsanius Agrippa, Hadrian, Apollodorus of Damascus
The Pantheon ( / ' p æ n ? i? ? n / or US / ' p æ n ? i? ? n /; [1] Latin: Pantheon, [nb 1] from Greek: ????e??? (?e???), an adjective meaning "(temple consecrated) to all gods") is a building in Rome, Italy, commissioned by Marcus Agrippa as a temple to all the gods of Ancient Rome, and rebuilt by Emperor Hadrian in about 126 AD. [2]

The building is circular with a portico of large granite Corinthian columns (eight in the first rank and two groups of four behind) under a pediment. A rectangular vestibule links the porch to the rotunda, which is under a coffered, concrete dome, with a central opening ( oculus) to the sky. Almost two thousand years after it was built, the Pantheon's dome is still the world's largest unreinforced concrete dome. [3] The height to the oculus and the diameter of the interior circle are the same, 43.3 metres (142 ft). [4]

It is one of the best-preserved of all Roman buildings. It has been in continuous use throughout its history, and since the 7th century, the Pantheon has been used as a Roman Catholic church dedicated to "St. Mary and the Martyrs" but informally known as "Santa Maria della Rotonda." [5] The square in front of the Pantheon is called Piazza della Rotonda.



To: skinowski who wrote (510812)10/1/2012 8:03:39 PM
From: MulhollandDrive  Read Replies (2) | Respond to of 793989
 
Their unraveling is already built in into their very foundation. There isn't a choice. Almost like life itself, which needs constant renewal and rebuilding in order to continue.

May as well find something positive in it.... :)


makes one wonder about where those billions upon billions of fuel taxes went to keep this stuff running smooth as glass, huh? <gg>



To: skinowski who wrote (510812)10/1/2012 10:04:59 PM
From: Alan Smithee  Respond to of 793989
 
Re: Rebar rusting out

An interesting book that touches on this is "Concrete!" by Leonard Koren. The book gives. History of oncrete and discusses current building techniques with it that are dependent on rebar.