|Application||Road Construction, Bituminous Waterproofing, Coating on Roofs|
|Features||Suitable for highly stressed areas, High viscosity|
|Pack Size||100-250 Liter or as per clients demand|
|Grade Standard||Reagent Grade, Technical Grade|
|Advantage||No heating require, Very durable|
From October 1987 to March 1993, Strategic Highway Research Program (SHRP) was conducted in the United States. The program was focused on the development of new methods for assessing the performance of bitumen binders. The research resulted in the development of a new method known as Superior Performing Asphalt Pavements (Superpave).
The main specifications of this method included :
The problems studied in this method are as follows :
The primary objective behind determining the new specifications was to facilitate the purchase of bitumen products of better quality because these specifications will clearly describe the product for potential buyers. The new specifications also guarantee the proper performance of bitumen in coating. Climatic conditions are important factors in the efficiency of coating, but limited research has been conducted on this issue due to limited time and quite similar weather conditions.
Moreover, they would not be precise if the loading factor is not taken into consideration. The producers all around the world, has been started to produce this type of bitumen which KB Oil is a prominent in this regard. Having installed SHRP systems, KB Oil is capable of selling bitumen to its customers based on PG method. It worth to remind that in the past, penetration was used as a factor for bitumen grading.
In performance grade, the focus is on the mechanical specification of bitumen while in penetration grade, experimental parameters are involved. Today, a PG is defined for polymer modified bitumen and pure bitumen based on environmental conditions and temperature. A wider PG range means higher resistance and more favourable specifications. KB Oil has the capacity to produce all these grades.
|High Temperature Performance||Low Temperature Performance|
|PG 46||-46, -40,-34|
|PG 58||-40,-34,-28,-22, -16,-10|
|PG 64||-40,-34, -28,-22,-16,-10|
|PG 70||-40 -34, -28,-22, -16, -10|
|PG 82||-34,-28, -22,-16,-10|