Research Article

Preparation, Structure, and Properties of Modified Asphalt with Waste Packaging Polypropylene and Organic Rectorite

Figure 9

Fluorescence microscope images of the samples: (a) basic asphalt, (b) WPP-modified asphalt with 4 wt. % WPP, (c) WPP/OREC-0.5-modified asphalt, (d) WPP/OREC-1-modified asphalt, (e) WPP/OREC-1.5-modified asphalt, (f) WPP/OREC-2-modified asphalt, and (g) WPP/OREC-2.5-modified asphalt.