How Has Roman Concrete Lasted for Millennia? A 1,900-Year-Old Latrine Offers New Clues About the Material’s Impressive Durability
Summary
The Smithsonian reports new research suggesting carbonation, in addition to the pozzolanic reaction, helps cement Roman concrete’s durability. Analysis of a 1,900-year-old latrine at Hadrian’s Villa shows calcite formation sealing cracks, which could inform the development of more durable, lower-carbon modern concrete.