What is the estimated required temperature for polymer modified asphalt mix during compaction?

The estimated required temperature for polymer modified asphalt mix during compaction typically falls within the range of 155 to 165°C. This temperature range is essential for ensuring that the asphalt mixture is adequately workable without compromising its performance characteristics. At this temperature, the polymers present in the asphalt can better integrate and interact with the asphalt binder, enhancing the mix's overall properties, such as flexibility, durability, and resistance to deformation.

In addition, higher temperatures can lead to issues such as increased oxidation of the binder, which can negatively affect the long-term performance of the pavement. Conversely, temperatures that are too low may result in difficulty during the compaction process, leading to inadequate bonding and potential pavement failures. Thus, maintaining the right compaction temperature is crucial for achieving optimal performance and longevity of the asphalt mixture.