Ngaba I-Oli ye-asphalt engenamanzi inetyhefu

Iingubo ze-asphalt ezingenamanzi, itsalwe kwipetroleum, ziqulathe ezingaguquguqukiyo, iihydrocarbons eziphezulu zemolekyuli.

Ngokukodwa kumaqondo obushushu aphezulu, ezi zogquma zikhupha umsi oyingozi kwizinto eziyingozi ngaphakathi kwe-asphalt, ichaphazela kakhulu umgangatho womoya wangaphakathi.