| Title |
Analytic Research about the Prediction of Long-term Neutralization Focused on the Reaction and Diffusion of Calcium Hydroxide |
| Keywords |
Prediction of Long-term Neutralization ; Diffusion of Calcium Hydroxide ; Rate Coefficient of Reaction ; Residual Calcium Hydroxide |
| Abstract |
The neutralization of cementitious materials, the reaction of carbonation dioxide from the outside and cement hydration product, such as calcium hydroxide, C?S?H, was studied by the numerical analysis method (FEM) in order to make consideration of the change of the pore structure and wide-ranging relative humidity during the neutralization reaction. The diffusivity coefficient of calcium hydroxide and the rate coefficient of reaction were estimated through the sensitivity analysis by comparing the experimental value and analytic value. |