Bitumen VG30
VG30 bitumen is used instead of 70/50 bitumen for road construction in difficult conditions that need to bear traffic load.
Bitumen VG30 Production of VG30 bitumen
Bitumen is used in road construction to create a bond between aggregates and form asphalt. Asphalt is a strong and solid material that can withstand heavy loads. This bitumen has a very high resistance to cracking and wear. These properties of VG30 bitumen have made the asphalt to be resistant to the harsh conditions of road construction.
VG30 grade can be used instead of 70/50 bitumen. Bitumen 70/50 has medium viscosity. But VG30 has better adhesion. These features make VG30 bitumen more resistant to separation and better adhesion to aggregates.
Advantages of bitumen VG30
Bitumen VG20
abrasion resistance
Resistance to cracking
Good adhesion
Ability to withstand heavy traffic load
Bitumen VG30
Viscosity bitumen is a standard bitumen that is used especially as paving bitumen and is suitable for road construction and asphalt production with special characteristics. VG30 grade is used exclusively for roads with high traffic and heavy vehicles.
Application of VG30 bitumen
Asphalt construction
Due to its suitable viscosity, VG30 bitumen is ideal for the production of hot asphalt used in road paving. This type of bitumen increases the durability and resistance of asphalt against temperature changes and traffic load.
Making surface coatings
Surface coatings used to protect and extend the useful life of pavements are made using VG30 bitumen. These coatings act as a protective layer against atmospheric factors and mechanical erosion.
Construction of asphalt foundations
Asphalt bases, which are used to strengthen roadbeds and increase their load-bearing capacity, can be produced using VG30 bitumen. These foundations are placed as a bottom layer in the road pavement structure.
Construction of reinforced concrete slabs with asphalt
In the construction of asphalt-reinforced concrete slabs, bitumen VG30 is used as a binder to increase flexibility and reduce concrete cracking. These slabs are usually used in projects that require surfaces resistant to heavy loads.
Bitumen VG30
Bitumen with VG30 grade is suitable for use in pavement mixtures resistant to heavy traffic loads and is used instead of 60/70 bitumen.
Disadvantages of VG30 bitumen
Heat sensitivity: VG30 loosens and liquefies in extreme heat and may separate from surfaces.
The relationship between bitumen viscosity grades
A higher grade bitumen has more viscosity and flows more slowly. Lower grade bitumen has lower viscosity and flows faster.
In general, higher grade viscosity bitumen is used in applications that require higher viscosity bitumen, such as asphalt construction. A lower grade viscosity bitumen is typically used in applications that require a higher flowability bitumen, such as insulation.
The classification of bitumen viscosity is classified based on the time required for the flow of a certain amount of bitumen at a temperature of 60 degrees Celsius.
The VG10, VG20 and VG30 ratings indicate the time required for bitumen to flow at 60°C. In other words, VG10 bitumen flows in 10 seconds at 60°C, VG20 bitumen flows in 20 seconds, and VG30 bitumen flows in 30 seconds.
This classification is simple and easy to understand. Also, this classification is widely accepted in the oil and petrochemical industry.
In some cases, other classifications may be used for bitumen viscosity. For example, in the United States, the AASHTO classification is used. This classification is based on the time required to flow a certain amount of bitumen at a temperature of 25 degrees Celsius.
However, VG10, VG20 and VG30 are the most commonly used bitumen viscosity ratings.
