Effect Investigation of Ultraviolet Ageing on the Rheological Properties, Micro-Structure, and Chemical Composition of Asphalt Binder Modified by Modifying Polymer

Figure 15

2D-3D spectrogram of 70# asphalt at different UV ageing stages. (a) 76.25 h-2D. (b) 76.25 h-3D. (c) 152.5 h-2D. (d) 152.5 h-3D. (e) 228h-2D. (f) 228h-3D. (g) 305h-2D. (h) 305h-3D.

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