Displaying items by tag: gravel

Germany: The University of Trier is transforming post-consumer materials into ‘ecological’ cement through a new research project that aims to find sustainable alternatives for the construction industry. The project involves using low-CO₂ industrial post-consumer materials as alternative cement binders, such as sludge from gravel and sand mining, as well as dust from quartzite extraction. The research will run for two years and is supported by the German Federal Environment Foundation.

Germany: Cemex Zement, part of Mexico-based Cemex, has bought a 400t/hr floating bucket chain dredger. The company plans to use the vessel in its aggregates operations on the River Elbe around Rogätz, Saxony-Anhalt. It includes a dewatering screening machine, a fine sand recovery system and a conveyor belt that transports the processed sands and gravels ashore. The dredger replaces an older 350t/hr model which has been in action since the mid-1990s. The company said that the purchase is in line with its strategy to enhance its vertically integrated positions near growing metropolises. Elbe operations supply aggregates to produce concrete for the Berlin market.

Central Europe vice president of materials Rüdiger Kuhn said "With this important investment, our company strengthens its position in the metropolitan market of Berlin and secures the long-term availability of valuable mineral raw materials for its customers."