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Ancient Roman Concrete: Why It Lasts Millennia

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The Secret Ingredient Roman concrete's exceptional durability stems from its unique mixture of volcanic ash (pozzolana), lime, and seawater. When seawater interacts with this combination, it triggers a chemical reaction forming aluminous tobermorite crystals. These crystals continue to strengthen the concrete over time, unlike modern concrete which typically degrades when exposed to ... https://shutdown123.com/

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