Table 2 In-lab measurements of cracks in the tenth of a mm range with comparator and 2D image-based technique due to the effect of temperature
Date | Indoor Temperature | Indoor RH % | Crack width increase measured with the comparator (reference) [mm] | 2D image-based [mm] | |
|---|---|---|---|---|---|
Distance between targets | Crack width increase | ||||
17 December 2018 | – | – | 0.00 | 23.68 | 0.00 |
19 December 2018 | 21.3º C | 38% | 0.00 | 23.68 | 0.00 |
8 January 2019 | 19.4º C | 34% | 0.10 | 23.82 | 0.14 |
11 January 2019 | 21.3º C | 38% | 0.20 | 24.14 | 0.46 |
14 January 2019 | 19.8º C | 38% | 0.20 | 23.81 | 0.13 |