Calvados - 21.06.2026: In the Calvados department, a road is currently being constructed using recycled scallop shells to reduce cement use and protect the environment. This innovative method utilizes the nearly pure calcium carbonate composition of the shells as a natural hardener that replaces industrial cement.The shells are collected by the company CSBT Environnement and processed at a nearby facility in Saint-Martin-des-Entrées. There, they are cleaned, heated, and ground into powder, which is then used in various industries. This method enables sustainable use of the shells and reduces the amount ...
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