Definition of Bitumen Penetration Grade 50/70
Bitumen 50/70 is a premium brand that is a dark brown or black in color similar to cement-shape semi-solid or viscous liquid form produced by the non-destructive refining of crude oil during petroleum refining.
Bitumen Penetration Grade 50/70 is classified based on its penetration grade, a characteristic that indicates its consistency and hardness. The numerical values, in this case, signify the range of penetration depth in tenths of a millimeter that a standard needle would achieve under predefined conditions.
At a temperature of 25°C (77°F), Bitumen Penetration Grade 50/70 allows the needle to penetrate the material to a depth of 5.0 to 7.0 millimeters. This particular penetration grade places Bitumen 50/70 within the mid-range of hardness, rendering it well-suited for a variety of applications.
In warmer climates where extreme heat can cause asphalt to soften, Bitumen 50/70’s balanced hardness aids in maintaining pavement stability and averting deformations. Conversely, in colder regions where freezing temperatures can induce brittleness in construction materials, the relatively higher penetration value of Bitumen 50/70 ensures that pavements remain pliable, minimizing the risk of cracks and damage
Application of Bitumen Penetration Grade 50/70
- Road Construction: As a core ingredient in asphalt mixes, Bitumen 50/70 is pivotal in the creation of resilient and long-lasting road surfaces. Its adaptability makes it an optimal choice for roads subject to varying traffic loads and climatic conditions.
- Highways and Expressways: Highways and expressways necessitate robust materials to withstand heavy traffic and endure the test of time. Bitumen 50/70’s qualities contribute to the formation of roadways that can withstand substantial wear and deliver a smooth driving experience.
- Airport Runways: Airports demand pavements capable of bearing the weight of aircraft and enduring continuous takeoffs and landings. Bitumen Penetration Grade 50/70’s resilience positions it as a prime candidate for constructing dependable airport runways.
- Parking Lots: Bitumen 50/70 is also commonly employed in the construction of parking lots, where its ability to handle vehicle loads and temperature fluctuations is invaluable.
- Industrial Pavements: Industries necessitate robust pavements capable of supporting heavy machinery and equipment. Bitumen 50/70’s attributes align well with such demands.
Properties of Bitumen Penetration Grade 50/70
Bitumen 50/70 is a specific grade of bitumen used in construction and infrastructure projects. It possesses distinct properties that make it suitable for various applications. Here are some key properties of Bitumen 50/70:
- Penetration: The penetration value of Bitumen 50/70, which ranges from 5.0 to 7.0 millimeters, indicates its hardness and consistency. This moderate penetration grade strikes a balance between stiffness and flexibility, making it suitable for a range of climatic conditions and traffic loads.
- Viscosity: Bitumen 50/70 exhibits a relatively high viscosity, giving it a thick and sticky consistency. This property is crucial for ensuring proper mixing and adhesion with aggregates during asphalt production.
- Thermal Stability: Bitumen 50/70 demonstrates excellent thermal stability, allowing it to perform well in regions with moderate temperature fluctuations. It can withstand both high temperatures without becoming overly soft and low temperatures without becoming excessively brittle.
- Elasticity: The moderate penetration grade of Bitumen 50/70 contributes to its elasticity. It can stretch and recover under traffic loads and temperature changes, reducing the likelihood of cracks and deformations in pavements.
- Resistance to Deformation: Asphalt 50/70’s properties make it resistant to permanent deformation caused by traffic loads. This is crucial for maintaining the structural integrity and smoothness of roads and highways.
- Waterproofing: Asphalt 50/70 is naturally waterproof, forming a protective barrier that prevents water from infiltrating pavement layers. This property helps extend the lifespan of pavements by reducing the risk of moisture-related damage.
- Adhesion: Bitumen 50/70 has good adhesion properties, ensuring that it adheres well to aggregates during asphalt mixing. This contributes to the overall strength and durability of the pavement.
- Durability: Its balanced properties enable Bitumen 50/70 to contribute to the creation of durable pavements that can withstand heavy traffic, weather variations, and regular use over time.
- Ageing Resistance: Asphalt 50/70 offers good resistance to the effects of ageing, such as oxidation and hardening, which can lead to pavement deterioration over time.
- Rutting and Rut Resistance: Rutting, the formation of depressions in the pavement due to repeated traffic loads, is mitigated by Bitumen 50/70’s combination of stiffness and flexibility.
- Crack Resistance: The elasticity of Asphalt 50/70 enhances its ability to resist cracking, a critical property for preventing pavement damage and maintaining longevity.
- Compatibility: Asphalt 50/70 is compatible with various asphalt additives and modifiers, allowing engineers to tailor its properties to specific project requirements.
Safety of Bitumen Penetration Grade 50/70
Workers should comply with these tips:
- Ventilation: Workers anywhere working should have appropriate Ventilation Because Bitumen can release fumes when heated, which can be harmful if inhaled.
- Protective Equipment: Workers should use heat-resistant gloves, safety shoes, long-sleeved shirts, long trousers, and safety goggles.
- Fire Safety: Workers work with high temperatures for this reason Keep bitumen away from open flames or sparks and have appropriate fire extinguishing equipment on hand
Packing of Bitumen Penetration Grade 50/70
- 1 MT Jumbo Bag with a steel cage and pallet: Loading 20 MT in 20 ft Container
- 1 MT Jumbo Bag without cage and pallet: Loading 20 MT in 40 ft Container
- 1300 Kg Jumbo Bag: Loading 26 MT in 40 ft Container
- 180kg New Steel Drum: Loading 110 Drum in 20 ft
- 375Kg Bitubag: Loading 24 MT in 20 ft Container
- Bulk in vessel: Loading 2000 to 20,000 MT in Bitumen Carrier
- Bulk in Flexi Bag: Loading 20 MT in Bitumen Felexi Bag
- Bulk in Tunker: Loading 25 MT in Truk Tanker
Specification of Bitumen Penetration Grade 50/70
BITUMEN 50/70 | TEST METHOD | UNIT | SPECIFICATION |
---|---|---|---|
Penetration – 25°C, 100g, 5s | EN 1426 | mm | 50-70 |
Softening Point (Ring & Ball) | EN 1427 | °C | 46/54 |
Kinematic Viscosity @ 135⁰C | EN 12595 | mm²/s | 295 min |
Solubility | EN 12592 | % | 99 min |
Penetration Index | EN 12591 | - | -1.5 + 0.7 |
Flashpoint (Cleveland Open) | EN 22592 | °C | 230 min |
Recistance to Hardening at 163 °C | |||
Change in mass (m/m) | EN 22592 | % | 0.5 max |
Retained Penetration 25°C, 100g, 5s (% of original) | EN 1426 | % | 50 min |
Increase in softening point | EN 1427 | °C | 8 max |