Roman Concrete Still Stands After 2000 Years — Modern Can’t Compete
Epochlight
[{'start': '0.160', 'end': '6.080', 'text': 'Modern concrete crumbles in 50 years. But\xa0\nRoman concrete? It’s still standing after'}, {'start': '6.080', 'end': '13.360', 'text': '2,000. Scientists just found out why. It heals\xa0\nitself. Tiny cracks fill in over time. The'}, {'start': '13.360', 'end': '20.480', 'text': 'secret? Volcanic ash. Mixed into the concrete,\xa0\nit reacts with water and repairs damage. That’s'}, {'start': '20.480', 'end': '26.320', 'text': 'how ancient harbors survive salty seas even\xa0\ntoday. The Romans didn’t just build for the'}, {'start': '26.320', 'end': '31.680', 'text': 'future. They built to outlive it. Subscribe\xa0\nto Epochlight for more forgotten genius.'}]