AdministratorWhat is pavement grade bitumen?
This is a bitumen manufactured by refining crude oil in a non-destructive way. It is highly used in mastic asphalt road construction on bridge decks & busy junctions, repairs and hot mixed asphalt due to high viscosity and tougher bitumen mixes.
What does a 60 70 grade bitumen indicate?
A grade of 60/70 bitumen means the penetration value is in the range 60 to 70 at standard test conditions which usually used as a Paving Grade. Bitumen 60/70 is applicable for the production of asphalt pavements with superior properties and for construction and maintenance of roads.
What is the meaning of 30 40 in bitumen?
Bitumen penetration grade 30/40 is semi-hard penetration grade bitumen used as a paving grade bitumen which is suitable for road construction and repair. It is also used for the production of asphalt pavements with the below technical specification.
Which is the hardest grade of paving bitumen?
Bitumen penetration grade 60/70 means the penetration value is in the range 60 to 70 at standard test conditions which commonly used as a Paving Grade….Detailed Solution.
| Bitumen Grade | Comment |
|---|---|
| 40 – 50 | Hardest Grade |
| 60 – 70 | Typical grade used in US |
| 85 – 100 | |
| 120 – 150 |
Which bitumen grade is best?
Bitumen VG30 is the most widely used type of bitumen in road construction, insulation, building construction industries, and also in the production of cutback bitumen. It’s better to know that this vg30 bitumen can be used instead of 60/70 penetration bitumen grade. VG 30 bitumen is a popular grade of bitumen in India.
What is a paving grade?
A sample of bitumen 30/40 has a penetration of between 30 to 40 mm. Among all grades of penetration bitumen, bitumen 60/70 is the most widely used in road construction. Also called the paving grade bitumen, this material works well in a wide range of temperatures (from -22 to +76).
What is the difference between bitumen 60 70 and 80 100?
The Difference between Bitumen 60/70 and 80/100 The main difference between 60/70 and 80/100 is their penetration value. To decide between 60/70 vs bitumen 80/100, we should consider the fact that bitumen penetration 80/100 is softer than bitumen 60/70. For this reason, bitumen 80/100 is used at cold temperatures.
What is the meaning of 80 100 bitumen?
Bitumen grade 80/100 meaning Bitumen of grade 80/100 means that in the bitumen penetration test, when the needle sinks 8 to 10 mm in the bitumen, we find out that the penetration value is between 8 and 10 mm and this type of bitumen is 80/100 bitumen.
What does a 80 100 grade bitumen indicate?
The unit of penetration is 1/10 mm. Thus 80/10 grade bitumen means 8 – 10 mm penetration. 30/40 and 80/100 grade bitumen are more commonly used, depending upon bitumen construction type and climate conditions. In hot climate, a lower penetration grade bitumen like 30/40 bitumen is preferred.
What does VG 40 mean?
VG-40 is used in highly stressed areas such as intersections, near toll booths and truck parking lots instead of 30/40 penetration grade. Because of higher viscosity, stiffer Bitumen mixes can be produced to amend resistance to shoving and other problems related to higher temperature and heavy traffic loads.