Abstract
The pore-structure of cement mortar is modelled by a cubic network of pores in order to simulate various static and dynamic phenomena concerning moisture, using elements of the theory of percolation. The pore diameter distribution is fitted in order to obtain a simulation of the hysteretic sorption in good agreement with experimental data. In the range of large diameters, the distribution is more accurately defined with the help of mercury intrusion data. The isothermal moisture migration in the structure previously determined is modelled, taking into account both vapour diffusion and viscous flow of liquid water, and assuming local equilibrium. Even at large liquid water content of the material, the vapour diffusion is found to be the dominant migration mechanism. The simulated coefficient of transfer is in very good agreement with the drying experimental data. The model is not as successful in the description of imbibition experiments. Some explanations are proposed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
