The study looked at how aging affects how well asphalt sticks to rocks in roads. They used computer simulations to see how different parts of asphalt stick to rocks before and after aging. They found that aging makes asphalt stick better to rocks, especially the heavy molecules in asphalt. Water makes the bond weaker, especially with aged asphalt. Real tests confirmed that aging makes asphalt stick better to rocks, but water makes it worse. This helps us understand how aging affects how well asphalt sticks to rocks in roads.