Numerical Simulation of Hydration and Microstructural Development in HardeningCement-Based Materials

摘要

The study describes a computer-based simulation model called HYMOSTRUC, theacronym for HYdration, MOrphology and STRUCtural development. The aims of the research project and of the simulation model in particular are the following. (1) Development of a simulation model with which adiabatic and/or isothermal hydration curves of Portland cement-based materials can be predicted. These curves could serve as input for numerical evaluation of thermal effects in hardening concrete structures. (2) The simulation model should take into consideration mutual interferences between the hydration process and the development of microstructure. Morphological features, particularly temperature-related ones, should be dealt with. (3) The correlation between structural development (as it will be considered in the model) and the development of material properties shall be evaluated. (4) In view of the desired applicability of the results in engineering practice indications shall be given as regards the reliability and accuracy of the predictions.