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Penetration 70-100

Penetration grade bitumen is a straight run bitumen specified by the penetration and softening point test. Penetration bituminous asphalt soften at high temperature and harden at low temperature due to Having thermoplastic property. Penetration grade asphalt is manufactured by vacuum distillation of crude oil. The most common grade is bitumen 60/70 which can be used for many applications. The penetration bituminous asphalt with high penetration  numbers which are soft, mostly used in cold weather conditions and hard bituminous asphalt (low penetration number) can be used for warm weather condition.

 

The bitumen penetration grade 70/100 is a hard penetration grade, with penetration between 70 and 100 usually used as paving grade bitumen. The common application of this grade is in spraying, chip applications, road construction, asphalt pavement and manufacter of hot-mix asphalt.


Specification of penetration bitumen 70-100


Test method

Unit

Specification

Penetration  @ 25°c

IP 49

mm/10

70/100

Softening point °c

IP 58

°C

43/51

Kinematic Viscosity @ 135⁰C

IP 370

mm2/s

325 min

Flash point °c

IP 36

°C

225 min

Solubility is CS2(wt) %

IP 47

wt. %

 

99 min