Thermo-hydro-chemical modelling of a porous medium submitted to high temperature: An application to an axisymmetrical structure

The problem of porous media submitted to high temperature is of high interest. In this paper, we propose to approach the phenomena taking place in a heated medium using the nonsaturated reactive porous media theory. We describe the material microstructure with a porosymmetric curve taking into account the effects of dehydration put in evidence by experimental studies. This paper focuses on an application of a simplified version of the model to an axisymmetrical structure under thermal load. A quasi-analytical model under simplified hypothesis is established. The various steps of calculation are detailed. Results of finite volumes calculi are then presented, showing the fields evolution.