Bitumen types

Softening Point (˚C)

Cone Penetration at 25˚C (mm)

Viscosity (cP) at 50 RPM

Elastic Recovery at 25˚C (%)

135˚C

165˚C

177˚C

Pen 60/70

49.5

65

310

-

-

55

Pen 60/70 + 5% (0.0526 kg) of crumb rubber

53

55

765

-

-

54

Pen 60/70 + 10% (0.111 kg) of crumb rubber

54.5

53.5

965

-

-

52

Pen 60/70 + 15% (0.176 kg) of crumb rubber

55

50

2490

665

540

50

Pen 60/70 + 20% (0.250 kg) of crumb rubber

60

40

N/A

1620

1280

43

Pen 60/70 + 25% (0.333 kg) of crumb rubber

64

44

N/A

2645

2125

45.7

PG 76

85

49.7

2215

570

380

90