Computer · Pavement Materials
A bitumen sample has been graded as VG30 as per IS: 73-2013. What does '30' represent in this viscosity grade system?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Kinematic viscosity at 135 °C is exactly 300 cSt
- 2Ductility of bitumen at 27 °C is more than 30 cm
- 3Absolute viscosity of bitumen at 60 °C is between 2400 and 3600 Poise (100 × 30 ± 20%)✓
- 4Penetration value of bitumen at 25 °C is between 20 and 40 mm/10
Correct answer
Absolute viscosity of bitumen at 60 °C is between 2400 and 3600 Poise (100 × 30 ± 20%)
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