1999 Volume 10 Issue 2 Pages 43-49
This paper proposes a method estimating the long term movement phenomena of ions under various environmental conditions. According to this method, the quantity and direction of the movement of ions can be theoretically simulated. Special features include : considering (1) coexistence ions, (2) internal electrical potential. The formulas used in this method are based on the Nernst-plank formula, Debye-Mickel theory and electrical neutralization. The simulated results were confirmed by examination of the actual concrete exposed to seawater for 15.5 years. As a result, the validity of this method was confirmed.
