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Creating Eco-Friendly Cement

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Researchers at Drexel University in Pennsylvania are trying to lower cement’s carbon footprint by using technology of the past to build sidewalks of the future. It is the same technique that was used by the Greeks to build the Parthenon and the Egyptians for building the Great Pyramids, so it make sense that it uses less energy.

Source: for April 23: read more.


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