Abstract:
Hydration reactions in cement-based materials are the fundamental processes governing the development of concrete properties. The resulting microstructure directly determines the mechanical performance and long-term durability of concrete. Therefore, a thorough understanding of cement hydration mechanisms, accurate characterization of hydration products and microstructures, and establishment of quantitative relationships between microstructure and macroscopic properties are essential for the design of low-carbon and durable concrete.
In this seminar, Dr. Huang will present recent findings from his research on the dissolution and precipitation processes occurring at the hydration interface. Particular attention will be given to the characteristics of dissolution pits and nanoscale particles formed at the interface between aqueous solutions and calcium silicate minerals, as revealed by in situ Atomic Force Microscopy (AFM) and Cryogenic Transmission Electron Microscopy (Cryo-TEM). The seminar will also discuss the non-classical mechanisms governing the nucleation and precipitation of calcium silicate hydrate (C–S–H), the primary hydration product in cement systems.
Short bio:
Dr. Liming Huang is a Visiting Researcher at the Pacific Northwest National Laboratory (PNNL, USA) and an International Postdoctoral Fellow of Swedish Research Council. He received his dual Ph.D. degrees from Chalmers University of Technology, Sweden, and Tongji University, China, in 2023. His research focuses on the hydration mechanisms and mass transport-related durability of low-carbon concrete, as well as in situ characterization of solid-liquid interfacial reaction at nanoscale. He serves as a Young Editorial Board Member of Carbon Capture Science & Technology and Journal of Building Materials. He is also actively involved in several RILEM Technical Committees and currently serves as Secretary of Working Group 2 of RILEM TC-MMS.
