New Study Reveals Rome’s Eco-Friendly Construction
As well as being just as durable, Roman concrete was also more eco-friendly than our modern recipe, which consists of lime and clay. This mixture requires that it be heated at high temperatures and results in significant carbon dioxide emissions. Roman hydraulic concrete, on the other hand, was made from pumice, mortar, lime and volcanic ash from Italy—pozzolana—and fired at much lower temperatures, thereby creating the more eco-friendly Roman concrete. While it takes longer for the Roman concrete to set, it is just as durable as modern concrete. A full report of Monteiro’s findings was posted online in the Journal of the American Ceramic Society on May 28.
BAS Library Members: Read more about Herod the Great’s use of hydraulic concrete at Caesarea Maritima in Kenneth G. Holum, “Building Power: The Politics of Architecture.” BAR September/October 2004.
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