AFM characterization of morphological evolution and adhesion properties of ZnO/C nanosheet-modified asphalt under UV irradiation

Ding, Yanhuai; Zhang, Shuangshuang; Luo, Xinrui; Zhou, Ji

doi:10.1088/2051-672x/acaff6

Cited by 2 publications

(1 citation statement)

References 34 publications

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“…As shown in Figure 11 and Figure 12 [15] , the three-dimensional images of CRMA 60 and Sasobit with Coma60-2.5% were obtained after the modification of the microstructure image of the sample at the letter. The peak is formed by asphaltene aggregation, and the troughs are formed by alkyl side chain aggregation.…”

Section: Surface Morphology Analysis Of Wcrmamentioning

confidence: 99%

Rheological Properties of Desulfurized Crumb Rubber Modified Warm Mix Asphalt

Yuan,

Sun,

Huang

et al. 2023

J. Phys.: Conf. Ser.

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In order to study the rheological properties of warm mix asphalt modified by desulfurized rubber powder with different meshes, the desulfurized rubber powder was mixed with matrix asphalt at the best content. Dynamic shear rheological test (DSR) was used to study the high temperature rheological properties of asphalt modified by waste rubber powder. Multi-stress creep test (MSCR) was used to study the high temperature deformation resistance of asphalt modified with waste rubber powder. The low temperature rheological properties of Sasobit and crumb rubber modified asphalt with different mesh numbers were evaluated by bending beam rheological test (BBR). The test results show that compared with the base asphalt, the complex modulus and rutting factor of CRMA 60 are significantly improved, and the effect is more obvious than that of CRMA 40 and CRMA 80. With the addition of Sasobit, the high temperature performance of WCRMA first increased and then decreased. With the addition of Sasobit, the creep stiffness modulus of WCRMA decreases, the creep rate increases, and the low-temperature properties first increase and then decrease. From the atomic force microscope (AFM), it can be seen that Sasobit promotes the compatibility between rubber powder and asphalt, and the performance of asphalt modified by 60 mesh rubber powder is best. When the mass fraction of Sasobit is 2.5%, WCRMA has the best comprehensive performance.

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Section: Surface Morphology Analysis Of Wcrmamentioning

confidence: 99%