Studying of salt diffusion coefficient in brick—Analytical and numerical methods

Durability of clay roofing tiles: the influence of microstructural and compositional variables

“…3 In particular, in cold climates, the service lifetime of clay-based components is heavily affected by frost action and salt crystallization. 4,5 Frost action is produced when the temperature falls below 0 • C and the water included in the material porous structure starts freezing; the density change at the liquid-solid water transition implies the development of an internal pressure, leading * Corresponding author. Tel.…”

Comparison of modeling methods for the determination of effective porosities and diffusion coefficients in through‐diffusion tests

“…In many applications of the through-diffusion technique, this condition may be violated. It requires experimental design to ensure that this condition is achieved [Lü and Viljanen, 2002;Lü and Ahl, 2005;Van Loon et al, 2003b], or at a minimum, verification of this condition through sampling. Moridis [1999] provides examples demonstrating the potential errors that would arise if this condition is violated.…”

“…[21] Lü and Viljanen [2002] and Lü and Ahl [2005] present an approximate analytical (AA) solution that is a ''special case'' of the solution presented by Moridis [1999]. Similar to the Moridis' solution, this solution is derived using the inversion of a Laplace transformation of Fick's law.…”

Analytical solution to the diffusion, sorption and decay chain equation in a saturated porous medium between two reservoirs

“…Guzm an et al (2014), employed the finite element method (FEM) for determining diffusion and distribution coefficients. Lü and Ahl (2005) and Lü and Viljanen (2002) derived an analytical expression for the diffusion coefficient in the steady state. P erez Guerrero et al (2009Guerrero et al ( , 2010 found an analytical expression for the concentration using classical integral transform techniques.…”