Characterization of the Red Mud Resulted from the Alumina Bayer Process Production for the Future Use in Geopolymers Synthesis - SPĂTARU, Ilenuța; VLAD, Maria; GHEORGHIEȘ, Constantin; MOVILEANU, Gelu (The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2014)