Oxidized bitumen 150/5, also known as blown bitumen, is a specialized form of bitumen produced through the controlled oxidation of vacuum bottom, a residue from the distillation of crude oil. This process enhances its properties, making it more suitable for various industrial applications.
Manufacturing Process
The production of oxidized bitumen 150/5 involves a continuous or staggered blowing process. Here’s a step-by-step overview:
- Heating: Penetration-grade bitumen is heated to a high temperature.
- Blowing: Hot air is blown through the heated bitumen in a controlled environment. This process increases the bitumen's softening point and decreases its penetration rate.
- Cooling: The oxidized bitumen is then cooled and solidified into the desired form.
The result is bitumen with a higher softening point and lower penetration, making it harder and more brittle compared to regular bitumen.
Specifications
Oxidized bitumen 150/5 is characterized by its specific physical properties:
- Penetration: 4-6 DMM
- Softening Point: 145-155°C
- Ductility: Minimum 1.5 cm at 25°C
- Flash Point: Minimum 260°C
- Solubility in CS2: Minimum 99%
These properties make it ideal for applications requiring durability and resistance to high temperatures.
Applications
Oxidized bitumen 150/5 is widely used in the construction industry due to its excellent waterproofing and adhesive properties. Some common applications include:
- Roofing: Used in roofing felts and membranes for waterproofing.
- Pipeline Coating: Provides a protective layer against corrosion.
- Road Construction: Used in asphalt mixes for paving and repairing roads.
- Sealants and Adhesives: Acts as a binding agent in various construction materials.
- Sound Dampening: Used in felts for reducing noise in buildings.
Technical Advantages
The technical benefits of oxidized bitumen 150/5 include:
- Durability: Resistant to weathering and aging.
- Flexibility: Maintains performance under varying temperatures.
- Water Resistance: Excellent waterproofing capabilities.
- Chemical Stability: Resistant to many chemicals, enhancing its longevity.
Packaging
Oxidized bitumen 150/5 is available in various packaging options, including:
- Kraft Bags: For easy handling and transportation.
- Meltable Plastic Bags: Convenient for direct use in applications.
- Drums: Suitable for bulk storage and transport.
- Bulk: For large-scale industrial use.
Trade of Oxidized Bitumen 150/5
The trade of oxidized bitumen 150/5 is a significant aspect of the global bitumen market, driven by its extensive use in construction and industrial applications. Here are some key points about its trade:
Major Exporters and Importers
Exporters:
Iran: One of the leading producers and exporters of oxidized bitumen 150/5, leveraging its vast petroleum resources.
United Arab Emirates (UAE): Another major exporter, benefiting from its strategic location and advanced refining capabilities.
Russia and the United States: Also, significant players in the global bitumen market.
Importers:
Asia: Countries like India and China are major importers due to their large-scale infrastructure projects.
Africa: Growing infrastructure needs drive the demand for bitumen in various African nations.
Europe: Several European countries import oxidized bitumen for construction and industrial uses.
Conclusion
Oxidized bitumen 150/5 is a versatile and essential material in the construction industry, offering superior performance in waterproofing, adhesion, and durability. Its unique properties make it suitable for a wide range of applications, from roofing and road construction to pipeline coating and sealants.