Research Article
Heating Experiment of CNT Cementitious Composites with Single-Walled and Multiwalled Carbon Nanotubes
Table 4
Heating experiment results for the CNT cement mortars.
| Specimen name | CNT type | CNT content (wt%) | Curing age (days) | Supplied voltage (V) | Temperature variation (°C) | Specimen/OPC group |
| OPC-7-50 V | — | — | 7 | 50 | 1.4 | — | OPC-7-100 V | 100 | 11.0 | — | OPC-28-50 V | 28 | 50 | 0.5 | — | OPC-28-100 V | 100 | 1.1 | — |
| MW-0625-7-50 V | MWCNTs | 0.0625 | 7 | 50 | 22.6 | 16.1 | MW-0625-7-100 V | 100 | 43.7 | 4.0 | MW-0625-28-50 V | 28 | 50 | 6.7 | 13.4 | MW-0625-28-100 V | 100 | 20.0 | 18.2 | MW-125-7-50 V | 0.125 | 7 | 50 | 33.3 | 23.8 | MW-125-7-100 V | 100 | 45.9 | 4.2 | MW-125-28-50 V | 28 | 50 | 3.7 | 7.4 | MW-125-28-100 V | 100 | 21.5 | 19.6 |
| SW-0625-7-50 V | SWCNTs | 0.0625 | 7 | 50 | 34.3 | 24.5 | SW-0625-7-100 V | 100 | 59.1 | 5.2 | SW-0625-28-50 V | 28 | 50 | 3.4 | 6.8 | SW-0625-28-100 V | 100 | 56.8 | 53.7 |
| SW-125-7-50 V | SWCNTs | 0.125 | 7 | 50 | 66.2 | 47.4 | SW-125-7-100 V | 100 | 70.6 | 5.9 | SW-125-28-50 V | 28 | 50 | 5.0 | 10 | SW-125-28-100 V | 100 | 65.3 | 64.2 |
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