WHAT IS BITUMEN 60/70

Bitumen 60/70 is a penetration-grade bitumen commonly used in road construction, asphalt paving, and waterproofing. The 60/70 classification refers to the penetration value, which indicates the hardness and consistency of the bitumen.

Key Properties of Bitumen 60/70:

1. Penetration Value: 60 to 70 (measured in 1/10 mm) at 25°C – This means the needle penetration test results fall within this range, indicating its medium hardness.
2. Softening Point: Around 49-56°C, meaning it begins to soften at these temperatures.
3. Viscosity: High viscosity, making it suitable for moderate to warm climates.
4. Applications:

• Used in hot mix asphalt (HMA) for road paving.
• Suitable for surface dressing and asphalt concrete production.
• Utilized in waterproofing and roofing industries.

1. Appearance: Black, sticky, and semi-solid at room temperature.

Why Use Bitumen 60/70 ?
Balanced Hardness & Flexibility
It provides a good balance between stiffness and elasticity, making it suitable for moderate temperature variations.
It is neither too soft (which could cause rutting in hot weather) nor too hard (which could lead to cracking in cold weather).
Ideal for Road Construction
Commonly used for paving highways, runways, and rural roads.
Offers good adhesion to aggregates, reducing road wear and tear.
Weather Resistance
Performs well in tropical and temperate climates.
Resists moderate temperature fluctuations without excessive softening or hardening.
Good Durability
Offers long-term performance, reducing maintenance costs.
Resistant to water penetration and oxidation.
Used in Various Applications
Besides roads, it is used in roofing, waterproofing, and insulation due to its adhesive and sealing properties.

• Offers good adhesion to aggregates.
• Provides durability and flexibility in road construction.
• Suitable for regions with moderate to high temperatures.

Uses of Bitumen 60/70:

• Road Construction: Used in asphalt pavements, highways, and runways.
• Waterproofing: Applied in roofing and insulation.
• Bituminous Mixes: Ideal for hot mix asphalt (HMA).
• Industrial Applications: Used in coatings and adhesives.