fig3

Figure 3. The box plot of SARA fractions for five asphalt binders: (A) Saturates; (B) Aromatics; (C) Resins; (D) Asphaltenes. ^*P value < 0.05; ^**P value < 0.01; ^***P value < 0.001; ^****P value < 0.0001. SARA: Saturate, aromatic, resin, and asphaltene.