When visiting historic cities, you’re likely to see historic landmarks and only think about the events that happened there and not the structures themselves. The houses, temples, roads, aqueducts, and harbors built thousands of years ago have withstood centuries of rain, wind, earthquakes, changing climates, and daily wear. For homeowners tackling renovations and looking at the makeup of their house, it’s an interesting reminder about the importance of the materials behind a project, in addition to the craftsmanship.
According to the Smithsonian, researchers studying an undisturbed section of Roman concrete at Hadrian’s Villa in Italy uncovered another clue behind the remarkable durability of ancient architecture, why some materials have lasted so long and what today’s builders can learn from them.
Learn why some ancient building materials continue to outperform many modern ones, what researchers recently discovered, and how those findings could influence future construction.
Roman Concrete Didn’t Stay the Same After It Was Poured
According to the Smithsonian, researchers examined an “undisturbed” section of nearly 1,900-year-old concrete. It allowed the scientists a rare opportunity to study how the material naturally changed over centuries.
Their findings suggest that Roman concrete grew stronger with age because of chemical reactions that continued inside the material over time.
“This study shows how exploring ancient engineering techniques can lead to important revelations,” Paulo J. M. Monteiro, a study co-author and civil engineer at the University of California, Berkeley, was quoted as saying in the Smithsonian. “We hope that by unlocking Roman secrets for enhancing concrete durability, we can someday attain sustainable modern infrastructure development.”
But what does this mean for modern construction?
Why Modern Materials Don’t Always Last as Long
Understandably, modern concrete is designed and manufactured to serve a different purpose than ancient Roman concrete was.
Modern buildings face challenges that ancient builders didn’t encounter, such as unique climates, heavy traffic, constant structural stress and corrosion from embedded steel reinforcement. Ancient Roman builders relied on materials that triggered chemical reactions over extremely long periods, which research now suggests contributed to its ability to stand for centuries.
That’s why today’s mixes prioritize predictable strength, faster construction, lower costs, consistent performance, and compatibility with other construction materials, such as steel reinforcement. By examining ancient Roman building techniques, researchers can determine whether similar processes could improve modern concrete.
If scientists can develop concrete that naturally seals small cracks or lasts longer before requiring repairs, it could reduce maintenance and extend the life of roads, bridges, seawalls, and buildings. The recent Smithsonian report highlights how a structure built nearly two millennia ago continues to provide answers that engineers can still apply today.
Sources
- Smithsonian Magazine, “How Has Roman Concrete Lasted for Millennia? A 1,900-Year-Old Latrine Offers New Clues About the Material’s Impressive Durability“
- Smithsonian Magazine, “The Secrets of Ancient Rome’s Buildings“
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