Figure 4
From: Ultraviolet aging study on bitumen modified by a composite of clay and fumed silica nanoparticles

Analysis of bitumen modified with clay/silica nanoparticles (CS-NPs) by means of EDS mapping: elemental spot maps of titanium (Ti), iron (Fe), zinc (Zn), silicon (Si), magnesium (Mg), aluminium (Al), Nitrogen (N), and combination intensity map of all seven elements.