Research Article
Study on Conventional and Rheological Properties of Corn Stalk Bioasphalt/PPA Composite Modified Asphalt
Table 7
Visual analysis of conventional physical properties.
| Index | Factor | PPA | Bioasphalt | Shear time | Shear rate |
| Penetration | Average value 1 | 148.7 | 79.28 | 85.6 | 89.55 | Average value 2 | 90.83 | 85.68 | 86.98 | 94.35 | Average value 3 | 66.13 | 94.43 | 97.48 | 88.53 | Average value 4 | 64.8 | 111.08 | 100.4 | 98.03 | Range | 83.9 | 31.8 | 14.8 | 9.5 |
| Softening point | Average value 1 | 44.35 | 67.35 | 61.43 | 63.03 | Average value 2 | 59.9 | 62.6 | 61.68 | 61.1 | Average value 3 | 68.13 | 59.78 | 61.08 | 60.8 | Average value 4 | 72.83 | 55.48 | 61.03 | 60.28 | Range | 28.48 | 11.88 | 0.65 | 2.75 |
| Ductility | Average value 1 | 489.88 | 322.28 | 383.48 | 389.95 | Average value 2 | 387.73 | 364.45 | 386.5 | 388.38 | Average value 3 | 360.08 | 419.1 | 406.4 | 406.13 | Average value 4 | 343.63 | 475.48 | 404.93 | 396.85 | Range | 146.25 | 153.2 | 22.93 | 17.75 |
| Viscosity | Average value 1 | 299.13 | 699.3 | 530.3 | 578.63 | Average value 2 | 443.6 | 601.75 | 560.63 | 601.18 | Average value 3 | 700 | 533.23 | 597.75 | 552.18 | Average value 4 | 839.88 | 448.33 | 593.93 | 550.63 | Range | 540.75 | 250.98 | 67.45 | 50.55 |
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