Dr. Xianjun Lyu obtained his PhD (Mineral Processing) from the Northeastern University, China, in 1994. He was a visiting scholar at Lulea University of Technology, Sweden, from 2000 to 2001. He is currently a professor in mineral processing at Shandong University of Science and Technology. His research interests include: Preparation and Application of Geopolymers, Solid Waste Processing, Preparation and Application of Cementicious Materals, and Mineral Processing Technology. He has published over 100 papers in peer reviewed journals and proceedings of international conference.