Research Article
Calibration on MEPDG Low Temperature Cracking Model and Recommendation on Asphalt Pavement Structures in Seasonal Frozen Region of China
Table 9
Surveyed data of thermal cracking on Haxihuan Highway since traffic opening.
| Milestone | Dir. | Crack number | Crack index | Crack space (m) | 30 mon. | 48 mon. | 72 mon. | 30 mon. | 48 mon. | 72 mon. | 30 mon. | 48 mon. | 72 mon. |
| K46-K47 | + | 20 | 30 | 30 | 2 | 2.7 | 3 | 52.6 | 38.5 | 34.5 | − | 22 | 27 | 42 | 2.2 | 3 | 4.2 | 47.6 | 34.5 | 24.4 | K47-K48 | + | 23 | 30 | 30 | 2.3 | 2.7 | 3 | 45.5 | 38.5 | 34.5 | − | 20 | 27 | 31 | 2 | 2.6 | 3.1 | 52.6 | 40.0 | 33.3 | K48-K49 | + | 15 | 26 | 25 | 1.5 | 2.1 | 2.5 | 71.4 | 50.0 | 41.7 | − | 17 | 21 | 25 | 1.7 | 2 | 2.5 | 62.5 | 52.6 | 41.7 | K49-K50 | + | 18 | 20 | 25 | 1.8 | 2.3 | 2.5 | 58.8 | 45.5 | 41.7 | − | 20 | 23 | 28 | 2 | 2.2 | 2.8 | 52.6 | 47.6 | 37.0 |
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