What is the effect of moisture on asphalt pavements?

Moisture plays a significant role in the performance and longevity of asphalt pavements. When moisture infiltrates the pavement structure, it can lead to a phenomenon known as stripping. Stripping occurs when the bond between the asphalt and aggregate weakens, primarily due to water. This bond is critical for the integrity of the pavement; when it is compromised, the asphalt can begin to separate from the aggregate particles.

As moisture continues to affect the pavement, it can exacerbate issues like rutting and cracking, which ultimately contribute to pavement failure. Factors such as repeated freeze-thaw cycles can further drive this process, leading to a more rapid deterioration of the pavement. Therefore, it is essential to manage moisture effectively during the design and maintenance of asphalt surfaces to ensure their durability and performance over time.

The other options do not accurately reflect the negative impact of moisture on asphalt pavements. For instance, while moisture might enhance the workability of materials during construction, it does not improve adhesion in a long-term context. Additionally, enhanced strength and a lack of significant effect are not true; moisture presents clear risks that need to be addressed in asphalt pavement management.