Application of Hybrid DTM and FDM in Solute Transport Problem of Concrete

Abstract:

The differential transform method (DTM) ceases to be effective when solving the solute transport equation with discontinuous condition. In order to solve this problem, hybrid DTM and finite difference method(FDM) were adopted to solve the solute transport equation of SO42-, coupled CO2 SO42- and coupled CO2Cl- of concrete, and the approximate solutions were obtained. The comparison of the results with those obtained by FEM shows that the proposed method is effective to obtain the approximate solution of solute transport problem.