Viscosity Grade Bitumen – Indian Standard (VG-10, VG-20, VG-30, VG-40)
Viscosity-grade bitumen is a cornerstone material for road construction and infrastructure projects, specifically tailored to meet the Indian Standard (IS) requirements. This page provides an in-depth overview of viscosity-grade bitumen, including VG-10, VG-20, VG-30, and VG-40, along with their packing methods, essential details, quality standards, and specifications. You’ll also find a contact form to request a quote for your project requirements.
Viscosity-grade bitumen is classified by its viscosity at specific temperatures, ensuring consistent and reliable performance across different climatic and application conditions. Indian Standard viscosity-grade bitumen is highly durable and ideal for constructing national highways, urban roads, rural roads, and industrial pavements. The grades under the Indian Standard include:
- VG-10 : Suitable for cold climates, surface dressing, and spray applications.
- VG-20 : Ideal for moderate climates and paving rural and city roads.
- VG-30 : Widely used in highways and high-traffic roads in warmer climates.
- VG-40 : Preferred for industrial pavements and heavy-load areas.
Essential Details of Viscosity-Grade Bitumen
| Grade | Absolute Viscosity (Poise at 60°C) | Kinematic Viscosity (cSt at 135°C) | Applications |
|---|---|---|---|
| VG-10 | 100-200 | 250+ | Spray applications, surface dressing. |
| VG-20 | 200-400 | 300+ | Moderate climate road construction. |
| VG-30 | 300-600 | 350+ | Highways and high-traffic zones. |
| VG-40 | 400-800 | 400+ | Industrial zones and heavy traffic areas. |
Quality Standards of Viscosity-Grade Bitumen
- Performs consistently in extreme hot and cold climates.
- Resists aging, deformation, and oxidation for long-lasting performance.
- Measured viscosity ensures reliable and predictable results.
- Manufactured in compliance with environmental safety standards.
Bitumen Packing Methods
- Capacity: 150 kg or 180 kg per drum.
- Advantages: Convenient for transportation and long-term storage.
- Description: Delivered in heated tankers for large-scale projects.
- Advantages: Cost-effective and reduces waste.
- Capacity: 1 metric ton per bag.
- Advantages: Ideal for large projects with minimal handling.
- Description: Compact, eco-friendly packaging.
- Advantages: Prevents spillage and ensures precise application.
Specification Sheet of Viscosity-Grade Bitumen
| Properties | VG-10 | VG-20 | VG-30 | VG-40 |
|---|---|---|---|---|
| Viscosity @ 60°C (Poise) | 100-200 | 200-400 | 300-600 | 400-800 |
| Viscosity @ 135°C (cSt) | 250+ | 300+ | 350+ | 400+ |
| Flash Point (°C) | ≥220 | ≥220 | ≥220 | ≥220 |
| Softening Point (°C) | 40-55 | 45-60 | 47-65 | 50-70 |
| Penetration @ 25°C (mm) | 80-100 | 60-80 | 50-70 | 40-55 |
Applications of Viscosity-Grade Bitumen
- VG-30 and VG-40 are preferred for high-traffic and heavy-duty roads.
- VG-20 ensures smooth and durable roads in moderate climates.
- VG-40 is ideal for pavements subjected to heavy loads and machinery.
- VG-10 is perfect for surface dressing and spray applications in colder regions.
Are you looking to source high-quality viscosity-grade bitumen for your construction project? Get in touch with us today! Fill out the form below to request a customized quote: