| 要旨 |
In this study, nitrogen sorption using ordinary Portland cement paste, was conducted to understand the microstructural changes of C-S-H during first drying and re-humidifying processes. In addition, based on the results of nitrogen sorption, the Grand Canonical Monte Carlo (GCMC) method was used for the pore size distribution characterization. As a result, three peaks are observed around 1.5 nm, 3.5 nm, and 10 nm for ordinary Portland cement. In both first drying and re-humidifying processes, the pore size distribution by GCMC method showed a similar trend to the pore structure changes in previous studies. |