Research Article
Experimental Study on Structural Mechanics of Asphalt Pavement by Digital Speckle Correlation Methods
Table 4
Maximum vertical strain value of the asphalt layer bottom.
| | Working condition | Bottom of the upper layer/ | Bottom of the middle layer/ | Bottom of the lower layer/ |
| | Standard load | −0.0251 | −0.0033 | 0.0303 |
| | 50% overload | −0.0559 | −0.0139 | 0.0570 | | 122.71% | 321.21% | 88.12% |
| | 100% overload | −0.0907 | −0.0263 | 0.0807 | | 261.35% | 696.97% | 166.33% |
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