Scientists Discover Secrets of Ancient Roman Concrete in Pompeii

Researchers have uncovered new insights into why ancient Roman concrete has lasted for thousands of years, particularly in structures like those found in Pompeii. The study reveals that Roman builders used a technique called “hot mixing,” which involved adding quicklime to the mixture, creating self-healing properties in the concrete. This allowed cracks to repair themselves over time when exposed to water. The discovery could inspire modern construction methods to create more durable and sustainable materials.