However, the two cooling measures cannot be directly applied to the expressways with a wide and high-temperature pavement surface in warm permafrost regions.
In almost all climate conditions, rutting in asphalt pavements is regarded as the most important distress factor, specifically in high temperature regions where pavement flexibility becomes a major problem and negatively affects the performance.
For example, rutting occurs in high temperature range and pavement cracks when its temperature is low.
It is found that if the shakedown design approach is conducted against the maximum wheel pressure at a relatively high temperature, the resulting pavement structure will probably not fail due to excessive rutting within the service life.
According to the results summarized above, it is concluded that the structure has a continuous cooling capacity, and is expected to reduce high temperature rutting of asphalt pavement and help to reduce high air temperature at night.
Rutting in pavement is a serious mode of distress beside fatigue in bituminous pavement in high temperature areas including India and may lead to premature failure in pavements and results in early and costly rehabilitation.
The proposed prediction models and the model establishment method can be of great significance in investigating the properties of asphalt mixtures at high temperatures and asphalt pavement rutting.
The cold recycled mixture shows higher mechanical strength, better resistance to high temperature and moisture-induced damage, and improves uniformity of the pavement structure.
It is very important for engineers to improve pavement performance by analyzing factors that contribute to high temperature stability for asphalt mixtures.
High temperature stability of asphalt mixture is used to evaluate the performance of asphalt concrete pavement.
Long-term pavement performance test results showed that high-viscosity modifier TPS has many merits in pavement performance, such as enhancing adhesion of asphalt and aggregate, improving mix resist stripping and high temperature of the asphalt flow resistance and contributing to the resistance to mix rutting.
