Due to weathering, due to U.V. light, due to oxidation, this binder, this bitumen, the glue between the aggregates is going to shrink, and if it shrinks, it gets micro-cracks, and it delaminates from the aggregates.
Debido a la intemperie, a la luz UV, a la oxidación, este adherente, este betún, el pegamento entre los áridos, se encogerá, y si se encoge, se harán microgrietas y se separará de los agregados.