Creating a more sustainable concrete-manufacturing cycle



Working jointly with Sanwa Sekisan Co. and Tokai University, we have developed both Cem R3—a cement manufactured from recycled, unused ready-mix concrete that would otherwise be sent back to the plant it came from—as well as Eco-Crete R3, a concrete made from this cement. By reusing concrete that would normally be mostly discarded, we have created a more sustainable concrete-manufacturing cycle. About 6,000 m³ of Eco-Crete R3 was used to construct a multiuse building in Fujisawa, Japan, that houses a community center and worker support center. As a result, we were able to reduce the amount of concrete waste by around 600 tons and cut CO2 emissions produced during the concrete-manufacturing process by around 480 tons.


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