Ipavement ye asphalt ichaphazeleka ngakumbi kwipetroli kunye nedizili, enziwe imichiza ikakhulu ibandakanya iialkanes kunye neecycloalkanes. Okuchasene, I-asphalt yenziwe ngee-hydrocarbons ezigcweleyo, iikhompawundi ezinuka kamnandi, iasphaltenes, kunye neentlaka.
Uphando lubonisa ukufana kokwakheka kweekhemikhali phakathi kwe-asphalt kunye nala mafutha, kungqinwa ziiparamitha zabo ezisondeleyo zokupheliswa. This similarity underpins the “like dissolves like” principle, suggesting that gasoline and diesel can significantly penetrate and dissolve itela.