FDOT Asphalt Plant Level 1 2025 – 400 Free Practice Questions to Pass the Exam

Thermal segregation in asphalt loads refers to the phenomenon where variations in temperature occur within a single truckload of asphalt mix. This can lead to non-uniform compaction because cooler areas of the mix do not compact as effectively as warmer areas. As a result, the pavement can have inconsistencies in density and performance, which may manifest as wheel path rutting, cracking, and other distress mechanisms over time.

The issue stems from the fact that asphalt is designed to be laid and compacted at specific temperatures for optimal performance. When cool spots exist due to thermal segregation, it disrupts the intended density and structural integrity of the pavement. Consequently, this can critically impair the longevity and functionality of the paved surface.

In contrast to the choice that highlights non-uniform compaction, aspects such as improved performance, increased workability, and consistency in temperature would not accurately represent the consequences of thermal segregation, as those options imply advantages or control over the quality of the asphalt mix that thermal segregation undermines.