Oil Derivation
UQ-PAS-PGB
PERFORMANCE GRADE BITUMEN PG BITUMEN

Packing: Bulk

Vendor: -

From October 1987 to March 1993, Strategic Highway Research Program (SHRP) was conducted in the United States. The program was focused on developing new methods for assessing the performance of bitumen binders. The research resulted in the development a new technique known as Superior Performing Asphalt Pavements (Superpave).
The main specifications of this method included:
    Using the efficiency criterion for bitumen binders and asphalt concrete
    Considering climatic conditions in the application of bitumen
The problems studied in this method are as follows:
    Winter low-temperature bitumen cracking is not related to loading
    Bitumen fatigue cracking due to loading
    Summer high-temperature bitumen deformation due to loading
The primary objective behind determining the new specifications was to facilitate the purchase of bitumen products of better quality because these specifications would clearly describe the product for potential buyers. The new specifications also guarantee the proper performance of bitumen in the coating. Climatic conditions are essential factors in coating efficiency, but limited research has been conducted on this issue due to limited time and similar weather conditions. Moreover, they would not be precise if the loading factor was not considered. Producers worldwide have been started to produce this type of bitumen, and POC is prominent in this regard. Having installed SHRP systems, Pasargad Oil Company is capable of selling bitumen to its customers based on the PG method. It is worth reminding that penetration was used as a factor for bitumen grading in the past. In performance grade, the focus is on the mechanical specification of bitumen, while in penetration grade, experimental parameters are involved. In Iran, pen grade is more common, but PG has better be used for better performance in some cases. A PG is defined as polymer-modified and pure bitumen based on environmental conditions and temperature. A more comprehensive PG range means higher resistance and more favorable specifications. Pasargad Oil Company can produce all these grades. This company first conducted climate zoning in Iran to specify the appropriate bitumen for different geographical zones.