What is oxidized bitumen?
This product, which is also known as blown bitumen, is made from the entry of hot air into pure bitumen in the last stage of purification. At first, hot air with a temperature of 200 to 300 degrees Celsius is blown into the bitumen chamber using perforated pipes, and when water is formed, it is placed.
In the process of curing, bitumen hydrocarbons are combined with air oxygen and polymer chains of blown bitumen are made. As a result, we will witness the production of bitumen with mineral properties with very high strength and hardness.
Technical specifications of oxidized bitumen
This substance is a petroleum product with a high degree of softness and elasticity, which is a high weight hydrocarbon such as oil, resin and asphalt. Asphalt present in blown bitumen makes it hard, and if the amount of asphaltic used increases, the produced bitumen becomes harder and harder than normal bitumen.
This product is displayed with the abbreviation R. For example, if we say bitumen 25.85R, it means its penetration degree is 0.25 mm and its softening point is 85 degrees centigrade.
Application of oxidized bitumen
By increasing the strength of blown bitumen due to hot air, many industries use this material as the main material so that the coating in the desired location is more robust. Also, insulating material for making car batteries, making asphalt and plating is done by this type of bitumen.
Due to low penetration and high degree of softness, blown bitumen shows good resistance to sunlight or high heat, and this ability is also the reason for its wide use in the production of waterproofing, isogam production, battery production, insulation of oil transmission pipes, insulation of pipes Water is the floor and body of the car.
Types of oxidized bitumen
The degree of penetration and softness of oxidized bitumen are used in various industries based on the degree of hardness. Let’s get to know some types of blown bitumen.
15/115
Blown bitumen 15-115, which is also known as oxidized asphalt, is produced from petroleum bitumen with the process of heating and blowing air. The main reason for the popularity and widespread use of this product is its high flash point, high softening ability, and high stability during melting.
Isolation, mixing with gasoline, asphalt production, pipe coating and paint production are the main uses of bitumen 15-115. Also, this material is widely used in the production of hose, isogam, bathroom floor covering and insulation.
25/95
is a sample of semi-solid blown bitumen which is produced from pure petroleum bitumen. This material is used in the insulation of buildings and civil affairs.
Another use of this product is to mix it with gasoline. By doing this, a material is obtained that has high permeability and dries quickly, and it is used in places where the asphalt is folded due to high temperature.
25/85
is a black solid substance that will gradually liquefy when the temperature rises. The main cases for using blown bitumen 25-85 are pipe coating, paint production, isogam, bathroom coating and building insulation.
It can be concluded that the use of three types of bitumen is similar and the reason for choosing each one is to consider the high temperature of the target area.
