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Is ancient Roman concrete better than today's? Most modern concrete starts with Portland cement, a powder made by heating limestone and clay to super-high temperatures and grinding them up. The ancient builders mixed materials like burnt limestone and volcanic sand with water and gravel, creating chemical reactions to bind everything together. Now, scientists think they’ve found a key reason why some Roman concrete has held up structures for thousands of years: The ancient material has an unusual power to repair itself. Even though Roman concrete lasted a long time, it couldn't hold up heavy loads: “You couldn’t build a modern skyscraper with Roman concrete,” Oleson said.
Persons: they’ve, , Carlos Rodriguez, Navarro, John Oleson, Vitruvius, Admir, Rome —, Marie Jackson, Jackson, ” Jackson, Rodriguez, Cecilia Pesce, They’d, ” Pesce, Thirumalini Selvaraj, Selvaraj, Oleson, Masic Organizations: , Spain’s University of Granada, University of Victoria, Massachusetts Institute of Technology, University of Utah, University of Sheffield, Vellore Institute of Technology, Army Corps of Engineers, Associated Press Health, Science Department, Howard Hughes Medical Institute’s Science, Educational Media Group, AP Locations: Canada, Portland, Rome, Copan, Honduras, England, India
AdvertisementAdvertisementIs ancient Roman concrete better than today's? Her research has found that the key could be in the specific volcanic materials used by the Romans. According to Selvaraj's research, in humid areas of India, builders used local herbs that help structures deal with moisture. Even though Roman concrete lasted a long time, it couldn't hold up heavy loads: "You couldn't build a modern skyscraper with Roman concrete," Oleson said. Instead, researchers are trying to take some of the ancient material's specialties and add them into modern mixes.
Persons: , they've, Carlos Rodriguez, Navarro, John Oleson, Domenico Stinellis, Vitruvius, Admir, Rome —, Marie Jackson, Jackson, Rodriguez, Moises Castillo, Cecilia Pesce, They'd, Pesce, Mark Schiefelbein, Thirumalini Selvaraj, Selvaraj, Oleson, Masic Organizations: Service, Spain's University of Granada, University of Victoria, Massachusetts Institute of Technology, University of Utah, AP, University of Sheffield, Vellore Institute of Technology, Army Corps of Engineers, Associated Press Health, Science Department, Howard Hughes Medical Institute's Science, Educational Media Group Locations: Canada, Portland, Rome, Copan, Honduras, England, India
Total: 2