The calculation of equilibrium based on thermodynamics applied to cement chemistry has been beneficial for a better understanding of cement hydration. First, the construction of phase diagrams of chemical systems relevant to cement hydration allows us to define the stable mineral assemblies that may form in a cement paste depending on temperature, pressure and the composition of the cement. Second, the calculation of the saturation index provides an efficient method in order to differentiate minerals that dissolve or precipitate but also to estimate the rates of dissolution and precipitation. Third, the existence of maximum supersaturation domains leading to an immediate precipitation, are key parameters to explain the kinetic path and thus the mechanism of hydration. The development of novel cements in order to reduce the CO2 footprint will require a regain of interest in the thermodynamic approach as the number of chemical constituents of these cements is likely to be greater.

报告人：

Denis Damidot is a full Professor at Institut Mines Telecom (IMT), France. He currently serves as the Director of Research and Innovation at IMT Nord Europe. He was previously Head of the Department of Civil and Environmental Engineering at IMT Nord Europe after starting his career in the cement industry following his PhD (University of Burgundy, France) and postdoctoral research (University of Aberdeen, Scotland-UK). 

He has also been a visiting/invited Professor at University of Weimar (Germany 2005, 2007), MIT (USA 2007), Hohai University (China 2009), Tsinghua University (China 2011), ETH Zurich (Switzerland 2018). 

Denis Damidot is ranked among the "Top 2% Scientists" by Stanford University since 2023 and most of his papers can be found in researchgate : https://www.researchgate.net/profile/Denis-Damidot.