How Has Roman Concrete Lasted for Millennia? 1,900-Year-Old Latrine Offers Clues

Roman concrete from a 1,900-year-old latrine has been studied, revealing clues about its impressive durability. The research could inform modern concrete production. The findings suggest the use of volcanic ash and seawater in the concrete mixture. This could lead to more sustainable and long-lasting concrete. Engineers may consider adopting these techniques.