NTU-CEE Distinguished Seminar Series: Professor Wang Dongmin

About the Seminar

Topic: Silico-Aluminate Solid Waste-Based Cementitious Materials: Composition, Performances, Reaction Mechanisms, Standardization, and Applications in Marine Engineering

The cement industry accounts for approximately 12% of global carbon emissions, making the green and low-carbon transformation of the building materials sector an urgent priority. Meanwhile, China generates more than 10 billion tons of industrial solid waste annually, much of which faces significant challenges, including difficulties in utilization, substantial historical stockpiles, and low resource utilization rates. The large-scale substitution of conventional cement with aluminosilicate industrial solid wastes – such as fly ash, slag, and coal gangue – to produce low-carbon cementitious materials offers an important pathway for achieving synergistic benefits in carbon reduction, pollution mitigation, and resource utilization.

This presentation focuses on four key aspects of aluminosilicate solid waste-based cementitious materials: compositional design, reaction mechanisms, standardization, and engineering applications. First, based on alkali-sulfate synergistic activation and thermodynamic modelling, the dissolution–restructuring–polycondensation mechanisms of aluminosilicate glasses under the action of activators are investigated, and the formation mechanisms and performance regulation of major binding phases, including C-(A)-S-H and N-A-S-H gels, are elucidated. Second, the latest progress in establishing a standardization system for aluminosilicate solid waste-based cementitious materials is introduced, with particular emphasis on the development of the national standard Aluminosilicate Solid Waste-Based Cementitious Materials.

Finally, focusing on key engineering fields such as marine engineering, the potential applications of these low-carbon cementitious materials in major infrastructure projects are presented, providing theoretical insights and technical solutions for the high-value utilization of industrial solid waste and the green construction of major engineering projects.

About the Speaker

Professor Wang Dongmin, China University of Mining and Technology (Beijing)

Prof. Wang Dongming is a Professor and Doctoral Supervisor at the School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), and Dean of the Institute of Concrete and Environmental Materials. He is the Chief Scientist of a National Key R&D Programme of China and Chairman of the Solid Waste and Eco-materials Division of the Chinese Ceramic Society. His research focuses on the resource utilization of industrial and mining solid wastes and low-carbon cementitious materials for sustainable and marine concrete.

He has published over 400 journal papers, holds 58 invention patents, and is listed among Stanford University’s World’s Top 2% Scientists. He was elected a Foreign Member of the Russian Academy of Engineering in 2024.

Venue

CEE Seminar Room A (N1-B1b-06)