Research Article
Study on Conventional and Rheological Properties of Corn Stalk Bioasphalt/PPA Composite Modified Asphalt
Figure 9
Rutting index: (a) PPA content of 2%, (b) PPA content of 4%, (c) PPA content of 6%, and (d) PPA content of 8%.
(a) |
(b) |
(c) |
(d) |