Prompt Description

Panel 1 – Aged SBS asphalt with capsules • Background: Cross-section of porous asphalt with: • Aggregate skeleton. • Aged SBS-modified binder phase (represented as a continuous phase) with: • Oxidized/asphaltene-rich matrix. • Broken SBS chains (short segments, with “X” marks indicating chain breaks). • Dispersed microcapsules (Type B): • Core labeled “SO + DAP”. • Shell labeled “Ca-alginate” or “capsule wall”. • A visible microcrack traversing the binder and contacting some capsules. Caption suggestion: “Long-term aged SBS-modified asphalt containing embedded SO/DAP capsules and exhibiting microcrack formation.”