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David: I've got a full-time job ic trazodone 50 mg nt At the University of Salerno in southern Italy, scientists working on the European research project EnCoRe (Environmentally-friendly solutions for Concrete with Recycled and natural components) are mixing what looks like ordinary concrete. But there is one added ingredient: the standard recipe including water, cement and aggregates has been improved by adding recycled industrial fibers to produce a greener, more sustainable concrete.