Table 4. Electron, mass densities and μ obtained by PXCT for the PC–CC 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) |
|---|---|---|---|---|---|---|---|
| 1, Monocarbo, AFt pore solution | 0.45 (3) | 0.48 | — | 1.36 (9) | — | 193 | — |
| 3, HD_C-S-H | 0.64 (1) | 0.63 | — | ∼2.05 | — | 228 | — |
| 4, CH | 0.698 (7) | 0.68 | 0.69 | 2.23 (2) | 2.23 | 464 | 446.1 |
| 7, CC | 0.826 (4) | 0.80 | 0.82 | 2.75 (1) | 2.71 | 411 | 415.2 |
| 8, C3S | 0.963 (4) | 0.93 | 0.95 | 3.20 (1) | 3.15 | 649 | 657.8 |
| 9, C2S | 0.998 (8) | 0.99 | 0.99 | 3.32 (3) | 3.30 | 639 | 637.3 |
| 10, MgO | 1.062 (16) | 1.06 | 1.07 | 3.52 (5) | 3.58 | 211 | 217.4 |
| 11, C4AF | 1.062 (16) | 1.06 | 1.1 | 3.60 (5) | 3.73 | 566 | 566.4 |
| Capillary | 0.674 (6) | — | 0.66 | 2.24 (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 no available for nanocrystalline/amorphous components.