Viscosity Grade Bitumen (VG10, VG20, VG30, VG40)

High-Quality Asphalt Binder by HJ OIL – Middle East Origin

Viscosity Grade Bitumen (VG Bitumen) is a premium petroleum-based asphalt binder widely used in road construction, infrastructure development, and asphalt pavement production. Supplied by HJ OIL, this product is sourced from high-quality feedstock in the Middle East and meets international performance standards for durability, consistency, and temperature resistance.

What is Viscosity Grade Bitumen?

Viscosity Grade Bitumen (VG Bitumen) is classified based on its viscosity characteristics at specific temperatures, providing a more accurate and performance-based grading system compared to traditional penetration grades.

Unlike penetration grading, viscosity grading evaluates the flow behavior of bitumen at 60°C and 135°C, ensuring reliable performance in both construction and service conditions.

This system categorizes bitumen into four primary grades:

• VG 10
• VG 20
• VG 30
• VG 40

The higher the grade number, the higher the viscosity and stiffness of the bitumen.

Why VG Bitumen is Preferred?

Compared to penetration grade bitumen, VG bitumen offers:

• Better performance predictability
• Reduced temperature susceptibility
• Improved resistance to rutting
• Enhanced durability under heavy traffic
• More accurate control during asphalt mixing

This makes VG Bitumen the preferred choice for modern road engineering and infrastructure projects worldwide.

Production & Origin

HJ OIL Viscosity Grade Bitumen is produced from vacuum distillation residue of crude oil, processed to achieve optimal viscosity performance.

✔ Origin: Middle East
✔ Processing: Advanced refining and viscosity-controlled production
✔ Compliance: ASTM & AASHTO standards

Applications of VG Bitumen

Viscosity Grade Bitumen is widely used in:

• Road construction and paving
• Highway and expressway projects
• Asphalt concrete production (Hot Mix Asphalt)
• Surface dressing and spraying
• Bitumen emulsions
• Polymer modified bitumen (PMB) production

Applications by Grade

VG 10

• Suitable for cold climates
• Used in spraying and surface dressing
• Replacement for Penetration Grade 80/100

VG 20

• Ideal for moderate climate and high altitude regions
• Used in paving applications

VG 30

• Designed for heavy-duty road construction
• Suitable for high traffic loads
• Equivalent to Penetration Grade 60/70

 VG 40

• Used in extreme traffic conditions
• Ideal for intersections, toll booths, parking areas
• Replacement for Penetration Grade 30/40

Technical Concept of VG Bitumen

VG Bitumen is tested in two main stages:

1. Penetration Test (25°C)

Measures hardness under standard conditions.

2. Viscosity Test

• Absolute Viscosity at 60°C → Performance at high temperatures
• Kinematic Viscosity at 135°C → Behavior during mixing and application

This dual testing ensures better control over:

• Adhesion
• Durability
• Rheological properties
• Application temperature

Advantages of VG Bitumen

• Better rutting resistance
• Improved fatigue life
• Stable performance across temperature variations
• Reduced risk of deformation
• Accurate mixing and laying temperatures
• Widely accepted global standard

Grading Standards

Viscosity Grade Bitumen is defined by:

• ASTM D3381-09
• AASHTO M226-80

Two main grading systems exist:

1. AC Grades (Standard)

Measured at 60°C

2. AR Grades (Aged Residue)

Measured after RTFOT (Thin Film Oven Test)

Key Technical Parameters

Performance Behavior

Viscosity Grade Bitumen exhibits thermoplastic behavior:

• Softens at high temperatures
• Hardens at low temperatures

This characteristic is critical for:

• Pavement durability
• Load resistance
• Climate adaptability

Why Choose HJ OIL?

HJ OIL is a trusted supplier of petroleum and bitumen products with strong international presence.

✔ Advantages:

• Consistent product quality
• Reliable Middle East sourcing
• Flexible supply capacity
• Competitive pricing
• Professional export support