Products and Services

Performance Grade (PG) Bitumen

Performance Grade (PG) bitumen is bitumen which is graded based on its performance at different temperatures. The LTPP has given certain algorithm to calculate the temperature of the pavement based on the temperature of the air above. From this, the highest and the lowest temperatures of the pavement is calculated and the bitumen that performs well in that temperature range is selected.

 This Bitumen is being used in Road, Airport constructions.

 SPECIFICATION FOR PERFORMANCE GRADE BITUMEN

PROPERTY

GRADES

STANDARD

 

PG 76-10

PG 82-10

 

 

Min

Max

Min

Max

 

Flash Point, COC, °C

230

-

230

-

T48

Viscosity @ 135°C, Pa·s

135°C

3.0

135°C

-

ASTM D4402

Dynamic Shear @ 70°C, G*/sin d, kPa

1.00

-

-

-

-

After RTFO

-

-

-

-

-

Dynamic Shear @ 70°C, G*/sin d, kPa

2.20

-

-

-

-

Mass Loss, %

-

1%

-

1%

-

After PAV @ 100°C

-

-

-

-

-

Dynamic Shear @ 28°C, G*·sin d, kPa

-

5000

-

-

-

Creep Stiffness @ -12°C, S, MPa

-

300

-

-

-

Creep Stiffness @ -12°C, M-value

0.300

-

-

-

-