VISCOSITY GRADE 10
VISCOSITY GRADE 10
VISCOSITY GRADE BITUMEN (VG Grade) To grade the bitumen based on viscosity BIS revised IS-73-1992 specifications (Viscosity at 60°C) and as such there are four grades VG-10, VG-20, VG-30 & VG-40. A few qualification tests like specific gravity, water content, ductility, loss on heating & fares breaking point were removed from IS:73-1992 as these tests do not have any relationship with the performance of the product.
Viscosity Grade Bitumen is widely used in spraying applications such as surface-dressing and paving in very cold climate. It is also used to manufacture bitumen emulsion and modified bitumen products.
SPECIFICATION FOR VISCOSITY GRADE BITUMEN PROPERTY RANGE
VG-10 VG-20 VG-30 VG-40 ABSOLUTE VISCOSITY 60°C POISE MIN
800 1000 2400 3200 KINEYATIC VISCOSITY 135°C CST MIN
250 100 350 400 FLASH POINT MIN°C
220 220 220 220 SOFTENING POINT MIN °C
40 45 47 50 PENETRATION 0.1 MIN.25 °C
80-100 60-80 50-70 40-60 DVCTILITY ON MIN .25°C
75 50 40 25 VICOSITY RATIO 60°C MAX
4 4 4 4 SOLURILITY IN TCE MIN
99 99 99 99
Product Picture