Bitumen 35/50

Bitumen 35/50 is a hard paving grade bitumen commonly used in heavy duty road construction, airports, highways, and areas with high traffic loads and warm climates. It offers excellent resistance to deformation and long-term pavement performance.

Important Features

• Penetration Grade: 35/50 dmm, indicating a harder binder than 50/70 or 60/70.
• High Rutting Resistance: Minimizes permanent deformation under heavy traffic.
• Excellent Load Bearing Capacity: Suitable for highways, expressways, ports, and industrial pavements.
• High Softening Point: Better performance in hot climates with reduced bleeding.
• Strong Adhesion: Bonds effectively with mineral aggregates for durable asphalt mixtures.
• Good Durability: Resists aging and oxidation, extending pavement service life.
• Excellent Fatigue Resistance: Helps reduce cracking caused by repeated traffic loading.
• Water Resistance: Provides good protection against moisture damage and stripping.
• Consistent Quality: Manufactured to meet international paving bitumen specifications.
• Easy Mixing and Compaction: When heated to the recommended temperatures, it provides excellent workability.

Main Advantages

• Longer pavement lifespan
• Reduced maintenance costs
• Superior performance under heavy traffic
• Better resistance to high temperatures
• Improved structural stability of asphalt pavements
• Enhanced resistance to rutting, shoving, and deformation

Bitumen 35/50 is primarily used in high performance asphalt pavements where heavy traffic, high axle loads, and elevated temperatures require a harder and more durable binder.

Main Uses:

• Highway Construction: Ideal for motorways, expressways, and national highways carrying heavy traffic.
• Airport Pavements: Used in runways, taxiways, and aprons due to its excellent resistance to rutting and deformation.
• Urban Roads: Suitable for city streets, intersections, bus lanes, and roundabouts exposed to frequent braking and acceleration.
• Industrial Roads: Designed for roads in industrial zones where heavy trucks and machinery operate continuously.
• Container Terminals: and Ports Provides durable pavement for container yards, loading areas, and port access roads.
• Bridge Deck Asphalt: Used in asphalt surfacing systems requiring high strength and long service life.
• Parking Areas: Suitable for heavy-duty parking lots for buses, trucks, and commercial vehicles.
• Logistics and Distribution Centers: Used in warehouses, freight terminals, and loading platforms.
• Mining and Quarry Roads: Applied to roads subjected to heavy mining equipment and continuous vehicle movement.
• Racetracks and Test Tracks: Preferred where stable pavement performance under high speed traffic is required.

Benefits of Using Bitumen 35/50

• High resistance to permanent deformation (rutting)
• Excellent performance under heavy traffic loads
• Superior stability in hot climates
• Long-lasting pavement with reduced maintenance
• Strong adhesion to aggregates
• Improved resistance to oxidation and aging
• Excellent durability and structural performance

Bitumen 35/50 is widely selected for Road Construction projects that demand high strength, excellent durability, and reliable long term performance under severe traffic and environmental conditions.

Bitumen 35/50 is not produced by mixing fixed percentages of ingredients. It is a refinery produced paving binder manufactured by carefully controlling the refining process to achieve a penetration value of 35–50 dmm and other required physical properties.

Production Process

1.Crude Oil Distillation:

• Crude oil is processed in an atmospheric distillation unit.
• Lighter fractions (gasoline, kerosene, diesel, etc.) are removed.

2. Vacuum Distillation:

• The heavy residue is further distilled under vacuum.
• The remaining vacuum residue forms the base material for paving bitumen.

3. Quality Adjustment
The binder may be adjusted by:

• Air blowing (when required)
• Blending different vacuum residues
• Flux adjustment (in some refinery processes)
• These adjustments ensure the product meets the required penetration, softening point, viscosity, and ductility specifications.

Common Composition

Component Typical Range
Asphaltenes 15–30%
Resins 25–40%
Aromatics 30–45%
Saturates 5–15%

These percentages vary depending on the crude oil source and refinery process. There is no universal formulation for Bitumen 35/50.

Important Quality Items

Penetration: 35–50 dmm
Softening Point: Typically 52–60°C
High viscosity
Excellent adhesion to aggregates
Good resistance to rutting and aging

Because Bitumen 35/50 is a refinery product, manufacturers normally will specify it by its performance properties and compliance with standards rather than by a fixed chemical recipe.

Packing of our bitumen would be 180 kg new steel drums and 1000 kg Jumbo bags.