Research Article
Pavement and Noise Reduction Performance of Open-Graded Asphalt Friction Course Improved by Waste Tire Crumb Rubber
Table 6
Results of mixture strength correlation degree and correlation coefficient.
| Item | Correlation coefficient | Correlation degree |
| Crumb rubber | 1 | 0.712 | 0.774 | 0.434 | 0.333 | 0.369 | 0.410 | 0.622 | 0.582 | Asphalt | 1 | 0.712 | 0.338 | 0.514 | 0.802 | 0.650 | 0.410 | 0.622 | 0.631 | Gradation | 1 | 0.352 | 0.774 | 0.514 | 0.802 | 0.369 | 0.553 | 0.622 | 0.623 |
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