Concrete dates back to 300 BC in Rome – where its formula was a closely-held secret. In this infographic by  Concrete Concepts, discover how concrete today is responsible for some of the greatest man made structures on the planet.

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The Astonishing History of Concrete in Buildings

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Irma Wallace

Co-founder and Vice President of SearchRank, responsible for many of the day to day operations of the company. She is also founder of The Arizona Builders' Zone, a construction / home improvement portal. Follow +Irma Wallace on Google + as well as Twitter.

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