The Ancient Romans weren't the first to create concrete, they were first to utilize this material widespread. By 200 BC, the Romans successfully implemented the use of concrete in the majority of their construction. They used a mixture of volcanic ash, lime, and seawater to form the mix.<br>
Over thousands of years, these materials were improved upon, combined with other materials and, ultimately, morphed into modern concrete. Today's concrete is made using Portland cement, coarse and fine aggregates of stone and sand, and water.
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