Mining and Metallurgical Wastes Based Alkali-Activated Materials

This book reviews the recent scientific developments on mining and metallurgical wastes-based alkali-activated materials (MMWAAMs). Enormous quantities of solid wastes are generated during the exploitation of ore deposits and the subsequent processing for materials, causing serious environmental problems. Alkali activation is one of the robust technologies that converts mining and metallurgical wastes into value-added materials and offers technological solutions for efficient stabilization of toxic components in mining and metallurgical wastes. Herein, this book presents the development of the design, processing routes, and performances of mining and metallurgical waste-based alkali-activated materials. It highlights in detail the relationships between the physicochemical characteristics of the source materials and the properties of synthesized binders. From the durability perspective, both the applicability of testing protocols and degradation mechanisms are also reviewed with significant experimental and modeling work presented. Furthermore, the transformation paths of initially toxic components during alkali activation, partitioning characteristics, as well as the assemblages of solubility-controlling mineral phases are discussed for detailed environmental compatibility evaluation. In addition, applications and perspectives for future directions of mining and metallurgical wastes-based alkali-activated materials are illustrated. By bringing state-of-the-art knowledge, this book appeals to a broad readership, particularly researchers engaged in material and environmental science, mining and metallurgical engineering, and other related fields.

Discusses the latest achievements on mining and metallurgical wastes-based alkali-activated materials Assesses the environmental footprint of toxic components Examines durability performances and degradation mechanism

Autorentext

Dr. Zengqing Sun has an interdisciplinary background and received his bachelor, master and Ph.D. in mineral processing (Central South University, China), environmental engineering (Nanjing University, China), and civil engineering (RWTH Aachen University, Germany), respectively. He was selected as the Hundred Talents Program (Hunan Provincial) scholar in 2020 and has been working at Central South University as an associate professor at the School of Minerals Processing and Bioengineering since then. He has been engaged in alkali-activated materials since 2011, focusing on the reaction mechanism and environmental compatibility, and has authored and co-authored more than 40 peer-reviewed papers and one book.

Inhalt

Synthesis, characterization and properties of alkali activated mine tailings.- Properties of fresh alkali activated ferrous metallurgy slags.- Geopolymer prepared from non-ferrous metallurgical slags: synthesis, mechanism and microstructure.- MgO-activated Materials: Sustainable Cement Alternative.- Additive manufacturing and application of self-healing geopolymers based on DIW technology.- Durability testing protocols for concrete made with alternative binders and recycled materials.- Chloride binding behaviors of alkali activated materials.- Shrinkage mechanisms and mitigation methods of alkali activated materials.- Sulfate induced degradation of alkali activated materials.- Carbonation alkali activated materials: characterization, performance and mechanism.- Environmental and health Implications of mine and metallurgy waste-based AAMs.- Leaching methodologies for alkali activated materials containing industrial wastes.- Applications of Geopolymer in Civil Engineering: Feasibility Study of Soft Soils Stabilization.- Utilization of copper mine tailings as road construction materials through geopolymerization.- Repair and Protection Materials from Alkali Activation of Metallurgical Slags.