Table 1 Hot-poured sealants used in the experiment.
Sample | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
Composition | Modified asphalt | Modified asphalt | Modified asphalt | Modified asphalt | Modified asphalt | Modified asphalt | Modified asphalt | Modified asphalt |
Repair method | Hot-poured | Hot-poured | Hot-poured | Hot-poured | Hot-poured | Hot-poured | Hot-poured | Hot-poured |
Applicable temperature | − 30 °C | − 30 °C | − 30 °C | − 30 °C | − 20 °C | − 20 °C | − 20 °C | − 20 °C |
Cone penetration (0.1 mm) | 98.9 | 101.5 | 105.6 | 108.4 | 99.83 | 102.5 | 97.7 | 84.2 |
Softening point (°C) | 82.5 | 87.8 | 84.4 | 80.7 | 87.6 | 81.8 | 92.3 | 86.2 |
Elastic recovery Rate (%) | 49.7 | 42.2 | 54.1 | 57.5 | 42.5 | 43.9 | 47 | 45.4 |
Flowability (mm) | 0.1 | 0.5 | 1.1 | 2.0 | 1.2 | 0.0 | 0.1 | 0.5 |
Low-temperature tensile performance | Pass | Pass | Pass | Pass | Pass | Pass | Pass | Pass |
Applicable specification | JT/T 740-2015 | |||||||
