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Oxidized Bitumen 90/40

Table of Contents

What is Oxidized Bitumen 90/40? Application and Production Details

Oxidized Bitumen 90/40 is a specialized form of bitumen, treated to enhance its physical properties. This type of bitumen is ideal for waterproofing, roofing, and road construction. In addition, this material boasts higher softening points and lower penetration grades, making it more resistant to deformations. Its production involves air-blowing hot bitumen, altering its consistency and durability. This process transforms standard bitumen into a more robust and versatile construction material.

oxidized bitumen applications

Production Process of Oxidized Bitumen 90/40 

The production of oxidized bitumen 90/40 consists of a  process that transforms standard bitumen into a specialized construction material. The process can be summarized as below:

Selection of Bitumen: The first step involves selecting the right grade of bitumen, which serves as the base material for oxidized bitumen 90/40. Quality control is crucial at this stage to ensure that the starting bitumen meets the necessary specifications.


Air Blowing: The selected bitumen is then subjected to controlled air blowing. This involves passing air through the hot bitumen under specific conditions of temperature and pressure. The introduction of air causes a chemical reaction that alters the bitumen’s properties.


Enhanced Viscosity: During the air-blowing process, the bitumen’s viscosity increases, making it thicker and more resistant to deformation. This enhanced viscosity is one of the key attributes that differentiate oxidized bitumen 90/40 from regular bitumen.


Higher Softening Point: Another significant change is the increase in the softening point of the bitumen. This makes oxidized bitumen 90/40 more suitable for applications where high temperatures or heavy loads are involved.


Quality Control: Quality control measures are implemented at every stage of the production process to ensure consistency and adherence to specifications. Samples are regularly tested to confirm that the final product meets the desired standards.


Technical Advantages of Oxidized Bitumen 90/40 

Enhanced Durability: Oxidized Bitumen 90/40 surpasses regular bitumen in terms of durability. So, it is the ideal choice for enduring extreme weather conditions and heavy traffic.


Superior Water Resistance: Its exceptional water resistance properties are crucial for ensuring the longevity of roofing solutions, and preventing water infiltration and damage.


Flexibility: Oxidized Bitumen 90/40’s flexibility is a key asset, reducing the risk of cracks and damages, especially when subjected to temperature fluctuations. This flexibility is particularly vital in road construction, where the material must withstand varying weather conditions without deteriorating.


How to Apply Oxidized Bitumen 90/40 

For a successful application, heat Oxidized Bitumen 90/40 to the recommended temperature. This ensures optimal performance and adherence in your construction projects, whether in roofing, waterproofing, or road building.

How to Store Oxidized Bitumen 90/40

Proper storage is vital. You should keep Oxidized Bitumen 90/40 in a cool, dry place, away from direct sunlight and moisture. This preserves its quality, ensuring it remains effective for future construction tasks.

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