Table 5. Electron, mass densities and μ obtained by PXCT for the PC-FA blend paste after five months of hydration; expected mass densities taken from the CIF files (Aranda, 2016 ▸) and expected μ (Henke et al., 1993 ▸) are also given.
| Phase | Electron density (e Å−3) average of ten values | Electron density (e Å−3) full volume† | Expected electron density (e Å−3) | Calculated density (g cm−3) | Expected density (g cm−3)‡ | Calculated μ (cm−1) (corrected)† | Expected μ (cm−1) | |
|---|---|---|---|---|---|---|---|---|
| Pore solution | 0.32 (5) | — | 0.33 | 1.0 (2) | 1.0 | — | — | |
| 1,2 LD_C-S-H & AFt | 0.56 (2) | 0.55 | — | ∼1.77 | — | 228 | — | |
| 4, CH | 0.689 (9) | 0.67 | 0.69 | 2.23 (3) | 2.23 | 434 | 446.1 | |
| 6, FA | 0.77 (2) | 0.75 | — | 2.56 (5) | — | 218 | — | |
| 9, C2S | 0.999 (5) | 0.97 | 0.99 | 3.32 (2) | 3.30 | 634 | 637.3 | |
| 10, MgO | — | 1.06 | 1.07 | 3.55 | 3.58 | 221 | 217.4 | |
| Capillary | 0.672 (5) | — | 0.66 | 2.23 (2) | 2.20 | — | — |
†
Values obtained from the segmented components by Avizo software.
‡
The expected density values are determined from crystallographic data and so they are not available for nanocrystalline/amorphous components.