,Performance grade bitumen (PG) is bitumen that is graded based on performance at different temperatures. LTPP has developed a specific algorithm for calculating asphalt temperature based on the respective air temperature. With this algorithm, the maximum and minimum temperature of asphalt is calculated and the best bitumen that works at this temperature is selected.
Functional Classification Bitumens (PG)
In this method, bitumen is classified based on performance characteristics in different environmental conditions. The profile is defined to limit the potential for permanent bitumen change and failure due to fatigue and cracking at low temperatures.
Types of bitumen in terms of electric charge:
Decreased thermal sensitivity
Increase elasticity
Increasing the service range in terms of temperature
Increased stress resistance
Increase user life
Reduce road damage
Functional classification for bitumen selection has been developed by SHRP. In this classification, which is based on recognizing the behavior of bitumen and its functional characteristics, with the characteristics of resistance to deformation, resistance to cracking due to cold, resistance to cracking due to fatigue, prediction of how hard bitumen in Asphalt plant and when preparing the asphalt mixture, how the bitumen hardens over time and with the tests specified in the specifications, and the appropriate bitumen according to the temperature of the project site, traffic, loading speed and Geographical location is selected.
Each type of bitumen is characterized by two positive and negative numbers, the positive number is related to the average of seven consecutive days with the highest pavement temperature and the negative number is the minimum pavement temperature in degrees Celsius.
http://www.jeyoil.com/en/page/iran-bitumenhttp://www.jeyoil.com/en/page/iran-bitumen
Iran_high_quality_bitumen
#Iran_bitumen
#Iran_bitumen_drum
#Iran_bitumen_bag
#Bitumen_refinery
#Main_bitumen_producer_in_iran
#Bitumen_product_in_iran
#Bitumen_price_in_iran
#Iran_Bitumen
#Drum
#JeyOil
#Jey_Oil
#Jey_Oil_Refining_CO
#w_jeyoil_ads
#شرکت_پالایش_نفت_جی
#بزرگترین_واحد_تولید_کننده_قیر_در_خاورمیانه
➡️➡️ http://jeyoil.com/en/home