Mineral Processing Techniques Dedicated to the Recycling of River Sediments to Produce Raw Materials for Construction Sector

Dredged river sediments produce a huge volume of mineral materials, which could be incorporated into building materials. Considering the raw sediment preparation, processing techniques fit perfectly to this purpose. This work describes two procedures prepare sediments, according final beneficial use. The first is dry procedure deagglomeration with aim being concrete formulation build bicycle path. A large amount deagglomerated was prepared, requiring upscaling process. Successive steps sieving and roll crushing were used obtain sediments. To use it as material pozzolanic materials lightweight aggregates, second consisting wet classification at 63 µm carried out. Steps sieving, followed by hydrocycloning screw classifying, several silt fractions under µm.