Oxidized Bitumen 150/5
oxidized bitumen 150/5 as a raw material for adhesives, insulation, separation of bitumen membrane sheet, chemical, special bitumen paints and dyes for protection of metal structures against corrosion, hydraulic applications and operations, Portland cement pavements, as a base for artificial grass , it is produced.
What is blown bitumen: introduction of oxidized bitumen + applications
Oxidized or blown bitumen is obtained by blowing hot air into pure bitumen in the final stage of the refining process. In this process, hot air with a temperature of 200 to 300 degrees Celsius is blown through a perforated pipe into the chamber containing bitumen. As a result of this process, the hydrogen atoms in the bitumen hydrocarbon molecules are combined with air oxygen and polymerization or water formation takes place. In the rest of this article, we will explain about the characteristics of blown bitumen, the properties of oxidized bitumen, the types of oxidized bitumen, the price and purchase of oxidized bitumen, and we will answer the question of what oxidized bitumen is.
What is blown bitumen?
First of all, we want to discuss what oxidized bitumen is and how it is obtained. Blown or Oxidized Bitumen is a material obtained from crude oil at high temperature and under a controlled reaction with air or oxygen. This process makes the bitumen more viscous and hard and improves its thermal properties.
The degree of oxidation can be changed to produce a wide range of materials with different properties, such as increasing the softening point, reducing the degree of penetration, and improving resistance to air and oxidation. Oxidized bitumen is usually used in various applications such as roofing and waterproofing or in the manufacture of industrial products such as adhesives, coatings and sealants.
How is oxidized bitumen 150/5 produced?
Oxidized bitumen, oxidized bitumen or blown bitumen is produced by continuous blowing process in ordinary bitumen. The heated penetrating bitumen is blown under a controlled air environment that controls the oil content of the bitumen as it oxidizes. Different grades of this bitumen are produced for suitable applications.
The production process of oxidized bitumen by blowing air is as follows:
Vacuum heating batum or bitumen to 230-270 degrees Celsius
Transfer of molten bitumen to tail towers
Blowing air into bitumen
Air-blown bitumen cooling
Oxidized bitumen packaging
Technical points and operating conditions of blown bitumen productionBlowing should be done from the bottom of the blowing tank. The reaction between bitumen and air is thermal and exothermic, and if the heat produced is high, the heat is controlled by injecting water. Increasing heating temperature, amount of air injection, time and tower pressure all increase the production reaction rate.
The suitable temperature for the production of blown bitumen is 265 to 270 degrees Celsius, which must be controlled so that it does not rise. Because at high temperature and at 288 degrees Celsius, the intensity of the reaction becomes more intense and uncontrollable, which causes an explosion in the tower.
Types of blown bitumen
Types of blown bitumen are classified based on the degree of oxidation, each of which has specific physical properties and is used to meet specific needs. Some common grades of oxidized bitumen include:
Hard grade: This grade has the highest degree of oxidation and is usually used for industrial applications that require durability and high resistance to atmospheric factors.
Medium grade: This grade has a lower oxidation degree than the hard grade and is often used for waterproofing applications such as sealing roofs and foundations.
Soft grade: This grade has the lowest degree of oxidation and is mainly used for paving applications such as road surfacing.
Super hard grade: This grade is similar to hard grade but has a higher oxidation level and is suitable for use in areas with extreme weather conditions.
