Research Article
CaCl2-Accelerated Hydration of Tricalcium Silicate: A STXM Study Combined with 29Si MAS NMR
Table 1
Peak positions and splitting energy values of the reference Ca L3,2-edge and the different areas of the C3S particles in the presence of CaCl2.
| | Samples | Peak positions (ev) | ΔCa-L3() | ΔCa-L2() | | | | |
| | CaCl2-ref | 348.0 | 349.2 | 351.3 | 352.4 | 1.2 | 1.1 | | Ca(OH)2-ref | 347.6 | 349.1 | 351.0 | 352.4 | 1.5 | 1.4 | | Unhydrated C3S-ref | 347.7 | 349.0 | 351.1 | 352.3 | 1.3 | 1.2 | | C-S-H-ref | 348.1 | 349.1 | 351.4 | 352.4 | 1.0 | 1.0 | | Area 1 | 347.7 | 349.0 | 351.1 | 352.3 | 1.3 | 1.2 | | Area 2 | 347.9 | 348.9 | 351.2 | 352.3 | 1.0 | 1.1 | | Area 3 | 347.8 | 349.0 | 351.1 | 352.3 | 1.2 | 1.2 |
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Data from Bae et al. [22].
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