Oxidized bitumen is an essential material in the construction and road-making industry, utilized for its unique properties in the production of asphalt and other related applications. This type of bitumen is produced through a specific process that enhances its physical and chemical characteristics, enabling it to withstand harsh weather conditions and heavy traffic loads.
Oxidized bitumen is derived from the oxidation of natural bitumen or blown bitumen, and it comes in various grades, each with distinct properties and applications. In this article by Faraz Oil, we will explore the production process, features, and applications of oxidized bitumen while examining its common grades. Choosing the appropriate grade of oxidized bitumen depends on weather conditions and the type of application, making it crucial for engineers and contractors to understand the properties of each grade to effectively design and implement construction projects. Join us in this exploration with Faraz Oil Bitumen Refinery .
What is Oxidized Bitumen?
Oxidized bitumen, also known as blown bitumen, is a type of bitumen produced by blowing air into molten bitumen. This process increases the viscosity, hardness, and adhesion of the bitumen, making it highly suitable for specific applications. Oxidized bitumen is primarily used in the production of asphalt, waterproofing membranes, and various coatings, and its characteristics have made it a recognized effective material in various construction projects.
From a physical and chemical perspective, oxidized bitumen is more resistant than conventional bitumen due to its higher oxygen content. It exhibits high adhesion, resistance to water and weather conditions, and the ability to withstand varying temperatures. Therefore, it holds significant importance in building and infrastructure projects. We also export quality bulk bitumen especially to Dubai and UAE
What is the Difference Between Bitumen and Oxidized Bitumen?
Conventional bitumen is primarily derived naturally or through petroleum refining processes, usually exhibiting lower viscosity and adhesion. In contrast, oxidized bitumen, produced by blowing air into molten bitumen, possesses enhanced physical and chemical properties. This process increases the hardness and softening point of the bitumen, enabling oxidized bitumen to perform better in various environmental and climatic conditions. Consequently, oxidized bitumen is employed in applications that require greater durability and stability.
Stages of Producing Oxidized Bitumen
The production of oxidized bitumen involves several stages:
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Heating Vacuum Bottom or Bitumen to 230-270 Degrees Celsius
The first stage of producing oxidized bitumen involves heating the bitumen to high temperatures. In this stage, vacuum bottom bitumen is heated to between 230 and 270 degrees Celsius until it melts and becomes liquid. This temperature is crucial for the air-blowing process and oxidation, ensuring that the bitumen participates uniformly and completely in the subsequent processes.
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Transferring the Melted Bitumen to Blowing Towers
After melting, the liquid bitumen is transferred to blowing towers. These towers are designed to create optimal conditions for the oxidation of the bitumen. In this stage, the bitumen is spread in a thin layer within the tower to maximize contact with the blown air, facilitating a more effective oxidation process.
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Blowing Air into the Bitumen
At this stage, warm air is introduced into the bitumen, initiating the blowing process. The introduction of air leads to chemical reactions, adding oxygen to the structure of the bitumen. This process increases the adhesion and hardness of the bitumen while improving its physical and chemical properties.
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Cooling the Blown Bitumen with Air
Following the blowing process, the blown bitumen enters the cooling phase. In this stage, the bitumen exits the tower and is cooled with fresh air. This step is critical for stabilizing the physical and chemical properties of the bitumen, preparing it for packaging and use.
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Packaging the Oxidized Bitumen
Finally, the oxidized bitumen is appropriately packaged after cooling. This packaging must be designed to protect the bitumen from environmental conditions and contaminants. Proper packaging ensures that the bitumen maintains its quality until use and is easily transportable.
Applications of Oxidized Bitumen
Oxidized bitumen has diverse and significant applications that have made it one of the primary materials in the construction industry. Notable applications include:
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Road Construction and Maintenance
Due to its adhesive properties and high resistance, oxidized bitumen is widely used in the production of asphalt for roads and thoroughfares. This type of bitumen can withstand heavy traffic and varying weather conditions, making it a key material in road construction projects.
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Water Projects such as Dam Construction and Hydraulic Structures
In water projects, oxidized bitumen is used as a waterproofing membrane to prevent water and moisture penetration. Its high resistance to water and hydraulic conditions makes it effective in the construction of dams and water structures, ensuring better performance and preventing water leakage.
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Roof Waterproofing
Oxidized bitumen is employed as a waterproofing material for roofs. Its adhesive properties and UV resistance make it ideal for preventing water and moisture ingress into buildings. This type of insulation contributes to the longevity of structures and prevents damage caused by moisture.
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Flooring and Parquet Repair
Oxidized bitumen is used as a protective coating for flooring and wooden parquet. This bitumen, due to its resistance to moisture and weather conditions, extends the lifespan of flooring materials and prevents damage. It also serves as a repair material in flooring renovations.
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Protecting Pipes from Corrosion and Rusting in the Oil and Gas Industry
In the oil and gas industry, This product is used as a protective coating for pipes. Its resistance to corrosion and rust helps extend the lifespan of pipes and reduce maintenance costs. This property is particularly significant in harsh environmental and geographical conditions.
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Cable Industry for Lithium Batteries and Wires
Oxidized bitumen is also utilized in the cable industry for insulating and protecting electrical wires and cables. With its excellent insulation properties and heat resistance, this bitumen enhances the safety and efficiency of cables, protecting them from moisture damage and environmental conditions.
Common Grades of Oxidized Bitumen
Various grades of oxidized bitumen are classified based on the level of oxidation, each with specific physical characteristics. Some of the most common grades of This product include:
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Grade 85-100
Grade 85-100 is recognized as one of the most common grades of oxidized bitumen. This grade has medium viscosity and consistency, typically used in regions with moderate climates. Its physical properties include a softening point between 85 and 100 degrees Celsius and suitable specific weight. This grade is mainly used in the production of hot asphalt and as coatings for various surfaces.
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Grade 60-70
Grade 60-70, with a lower viscosity than 85-100, is specifically used in warmer regions. This bitumen exhibits high adhesive properties and good resistance to temperature variations. The softening point of this grade typically ranges from 60 to 70 degrees Celsius. It is employed for producing heat-resistant asphalt and in road and construction applications with heavy traffic.
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Grade 40-50
Grade 40-50, due to its lower consistency and greater flexibility, is used in applications such as insulation and sealing. This bitumen typically performs better at lower temperatures and, due to its resistance to weather conditions and UV rays, is utilized for exterior coatings and waterproofing. The softening point of this grade is between 40 and 50 degrees Celsius and is used in sensitive construction projects.
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Grade 30-40
This grade is usually used in cold weather conditions and exhibits high adhesive and elastic properties. The softening point of this bitumen typically ranges from 30 to 40 degrees Celsius, making it suitable for producing specialized asphalt in cold regions and areas with heavy rainfall. Due to its resistance to water and moisture, it is also used in waterproofing pools and water supply systems.
Faraz Oil: A Center for Purchasing and Price Inquiry for Oxidized Bitumen
Faraz Oil is recognized as one of the most reputable suppliers ofThis product in Iran, aiming to provide high-quality products and customer-centric services. Utilizing the latest production technologies and quality control measures, the company supplies oxidized bitumen in various grades, allowing customers to choose suitable products based on their specific needs.
Among the special services offered by Faraz Oil is the ability to inquire about the prices of blown and oxidized bitumen online. Customers can easily obtain the information they need by visiting the company’s website and can also connect with our specialized consultants to make the best choice. This feature helps reduce the time and costs associated with purchasing, ensuring customers make informed decisions in their acquisitions.Follow us on Instagram