Roman concrete was remarkable because it could last for thousands of years, even underwater. Its mixture of lime, volcanic ash, and water allowed it to develop cracks that didn’t weaken it. When water entered a crack, it reacted with the lime to form calcium carbonate, which gradually filled the crack and bonded the concrete back together, essentially giving it a natural self-healing ability.
WOW: Far-left CNN hack Cameron Kasky panics and “retracts” his defamatory comments accusing President Trump of being involved in a global child s*x trafficking ring after being TORCHED by Scott Jennings live on air. “I said that by accident and didn’t mean it.”
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