Modelling the coupled evolution of hydration and porosity of cement-based materials
作者： M.M.Y. Delmi , A. Aı¨t-Mokhtar , O. Amiri
DOI: 10.1016/J.CONBUILDMAT.2004.12.004
关键词: Scale (ratio) 、 Mortar 、 Cement 、 Composite material 、 Porosity 、 Mineralogy 、 Volume averaging 、 Mass balance 、 Materials science 、 Macroscopic scale 、 Anhydrous
摘要: Abstract A modelling of the relationship between evolution endogenous hydration and that porosity cement-based materials was carried out. The mass balance equations anhydrous hydrates were written in molecular scale, then, transposed macroscopic scale by using volume averaging technique. combined system obtained (porosity equation balances) solved numerically. model validation done two steps case mortars cured during 2, 7 21 days. Simulation results rates compared to experimental SEM images analysis theoretical time checked against MIP results. Globally, a good correlation simulation ones noticed. However, less disturbing process material, it seems desirable improve drying mode samples before analyses or tests.
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