VISCOSITY ANALYSIS

Advantages of
Viscosity grade
Bitumen

Nowadays, VG bitumen is used instead of penetration bitumen

Because it is tested more carefully in two phases by experts. First, the penetration of bitumen is measured at 25 °C that is the average temperature, but the results of this test is not reliable in the hot weather, so they measure the viscosity of bitumen at 60 °C and 135 °C.

Graphical example of Viscosity Grade testing

These tests tell us that:

VG bitumen is suitable for a wide range of temperature; 25 °C for fatigue cracking and 135 °C for construction, also temperature susceptibility can be determined Less number of tests save time and costs; according to IS it has only 7 tests while penetration has 14 tests.

Longer durability

The pavement made from VG Bitumen will have better performance, because Viscosity value at
135 °C gives sufficient idea about mixing and compaction temperature and as a result pavement life
is improved. Any two samples of same VG bitumen would give similar rutting performance in hot
summer unlike the penetration grade. Minimum specified kinematic viscosity value at 135 °C helps
to minimize the potential of tender mixes during construction. VG bitumen is suitable for areas with high traffic loads.

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VISCOSITY ANALYSIS

Advantages of
Viscosity grade
Bitumen

Nowadays, VG bitumen is used instead of penetration bitumen

These tests tell us that:

Longer durability

MAIN LINKS

OTHER LINKS

CONTACT INFO

VISCOSITY ANALYSIS

Advantages of Viscosity grade Bitumen

Nowadays, VG bitumen is used instead of penetration bitumen

These tests tell us that:

Longer durability

MAIN LINKS

OTHER LINKS

CONTACT INFO

Advantages of
Viscosity grade
Bitumen