Fig 1.
The appearance of the modifiers used in this research.
The appearance of the SBS (a), TPU (b), and GO (c).
Table 1.
The technical indicators of the SK-90 matrix asphalt used in this research.
Table 2.
The technical indicators of the GO used in this research.
Fig 2.
The diagram of the DSR test process.
Fig 3.
The diagram of the BBR test process.
Fig 4.
The diagram of the infrared spectrum test process.
Fig 5.
The influence of the GO content on three indicators of the GO/TPU/SBS-modified asphalt.
Fig 6.
The effect of temperature on the composite shear modulus of the GO/TPU/SBS-modified asphalt.
Fig 7.
The variation of the rutting factor of GO/TPU/SBS-modified asphalt with the temperature.
Fig 8.
The variation of the G*sinδ values of the GO/TPU/SBS-modified asphalt with the temperature.
Fig 9.
The influences of the GO content on the low-temperature cracking parameters of the GO/TPU/SBS-modified asphalt.
(a) Effect on creep stiffness. (b) Effect on creep rate.
Fig 10.
The FTIR test results of modified asphalt with different GO contents.
Fig 11.
The UV-Vis spectra of the modified asphalt with different GO contents.