Engineering Mechanics

Proceedings Vol. 16 (2010)

ENGINEERING MECHANICS 2010

Copyright © 2010 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

Hlaváček P., Šmilauer V.
pages 41 - +5p., full text

The paper deals with simulation of N a+ leaching process occurring in alkali activated fly ashes (AAFA). The motivation arose from the concern of efflorescence, occurring in a moisture-gradient environment in these materials. The objective aims at quantification of unknown diffusion coefficient for N a+ and estimation of time-dependent leaching process. Numerical model formulated for 1D and 3D is used to solve the balance equation. The 1D model was created in Matlab/Octave environment and the 3D model was implemented into in-house OOFEM package. The simulation shows feasibility of proposed models and a good correspondence with experimental data.

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