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Roman concrete has lasted 2,000 years because seawater makes it grow stronger

Concrete poured by Roman engineers into Mediterranean harbors roughly two millennia ago is still intact, while modern ...
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Polymers from earth can make cement more climate-friendly

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Alcina Johnson Sudagar, Washington University in St. Louis (THE CONVERSATION) Concrete ...