» Bitumen » Penetration » Pen-80-100(ASTM)

Penetration 80-100

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 80/100 is semi hard penetration grade, with penetration between 80 and 100 usually used as paving grade bitumen.Which is moastly used in road construction, asphalt pavement and manufacter of hot-mix asphalt.


Specification of penetration bitumen 80-100


Test method

Unit

Specification

Specific gravity @ 25°c

ASTM D70

Kg/cm3


1.01/1.06


Penetration  25°c

ASTM D5


mm/10


80/100


Softening point °c

ASTM D36

°C

42/50

Ductility @25 °c

ASTM D113

cm

100 min

Loss on heating(wt.) %

ASTM D6

wt. %

 

0.2 max

Drop in penetration after heating %

ASTM D5-D6

%


20 max

Flash point °c

ASTM D92

°C

250 min

Solubility is CS2(wt) %

ASTM D4

wt. %

 

99.5 min

Spot test

A.A.S.H.O.T102


negative