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