What term describes the wearing away of pavement surface due to dislodging of aggregate particles?

The term that describes the wearing away of a pavement surface due to the dislodging of aggregate particles is raveling. This process occurs primarily when the surface texture of the pavement deteriorates, leading to the loss of small aggregate particles that were once bound together in the asphalt or concrete matrix. Raveling is often a result of environmental factors, traffic loads, or inadequate compaction at the time of installation. As the aggregates become loose and detach, the structural integrity of the pavement can be compromised, leading to further deterioration.

Understanding raveling is crucial in civil engineering as it helps engineers identify and address pavement issues promptly, ensuring the longevity and safety of road systems. Maintenance measures, such as sealing cracks or applying surface treatments, can mitigate the effects of raveling and extend the life of the pavement.