Research Article
Study on Conventional and Rheological Properties of Corn Stalk Bioasphalt/PPA Composite Modified Asphalt
Table 1
Technical index of neat asphalt.
| Index | Test results | Technical requirements |
| Penetration (25°C)/0.1 mm | 62.3 | 60–80 | Ductility (15°C), cm | 147 | ≥100 | Softening point, °C | 46.8 | ≥46 | Flash point, °C | 316 | ≥260 | Wax content, % | 1.56 | ≤2.2 |
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