Research Article
Pore Structure Characterization of Hardened Cement Paste by Multiple Methods
Table 5
Pore connectivity of porous volume.
| | Method | Samples | Surface connectivity | Total porosity (%) | Connected porosity (%) |
| | Nitrogen sorption | NS1 | Connected | 3.8 | 3.8 | | NS2 | 5.5 | 5.5 | | NS3 | 5.2 | 5.2 |
| | MIP | MIP1 | Connected | 14.8 | 14.8 | | MIP2 | 8.4 | 8.4 | | MIP3 | 4.7 | 4.7 | | MIP4 | 11.8 | 11.8 |
| | Nuclear magnetic resonance | NMR1 | Not known | 10.2 | | | NMR2 | 6.5 | |
| | X-ray tomography | XCT1 | Not connected | 1.8 | 0 | | XCT2 | 1.7 | 0 |
| | FIB/SEM | FS1 | Connected | 16.1 | 13.6 | | FS2 | 16.7 | 14.0 |
| | Helium ion microscopy | H1 | Not connected | 4.0 | 0 | | H2 | 3.4 | 0 |
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