Gilsonite in Oxidized Bitumen

Gilsonite in Oxidized Bitumen is used and called mixed oxidized. Each type of natural and refinery bitumen can have different physical and chemical properties, but combining these two types of bitumen can improve the properties and diversify their applications. The most important advantages of a mixture of refinery bitumen and Gilsonite include the following:

Improving the performance of the mixture

By combining refinery bitumen and natural bitumen, its performance can be significantly improved and developed. Since Gilsonite has various properties such as high elasticity, adhesion and durability, the properties of refinery bitumen can be improved and as a result, the asphalt produced with this mixture can have much better performance. Asphalt prepared from a mixture of these two bitumen can be more durable and long-lasting, have greater resistance to deformation and corrosion, and its permeability will also be reduced.

Increased durability and resistance to aging and oxidation

Another advantage of combining natural and refined bitumen is its increased durability and resistance to aging and oxidation. Gilsonite has a high carbon content and is very durable and long-lasting, and when mixed with refined bitumen, it can provide high resistance and durability to aging and oxidation. In principle, combining these two materials can increase the lifespan of bitumen and reduce its maintenance costs.

Improving the Rheological properties of bitumen

Rheological properties are basically the ability of a material to flow and deform under stress, and when Gilsonite is combined with refinery bitumen, this property is improved, and ultimately the asphalt produced with these bitumen can have high quality and be highly resistant to incoming pressures and traffic loads as well as temperature stresses.

In addition to the aforementioned, mixing Gilsonite in oxidized bitumen can have other advantages such as more industrial applications, reducing costs in various industries such as construction and road construction, etc.

Factors affecting the combination of Gilsonite in oxidized bitumen

As mentioned, Gilsonite powder and refinery bitumen can each have different physical and chemical properties and characteristics, which is why their combination can bring many challenges and it is necessary to pay attention to various factors and points when combining them. The most important factors affecting the combination of these two materials include the following:

Chemical composition of bitumen and Gilsonite

The chemical composition of bitumen and Gilsonite can have a significant impact on the compatibility and the process of differentiation of these two materials. If impurities such as sulfur, nitrogen, etc. are present inside each of these materials, they can affect the chemical reaction and performance of their mixture.

Temperature and mixing conditions

Another factor that can affect the mixing process is the temperature and conditions of the bitumen and Gilsonite mixture. In principle, mixing these two materials together requires high temperatures to produce a uniform and homogeneous mixture. Mixing time, temperature, and shear rate can affect the properties and performance of the asphalt mixture.

Particle size and concentration of gilsonite in oxidized bitumen

Particle size and concentration can be other factors affecting the mixing conditions of bitumen and Gilsonite. The larger the particle size and concentration of Gilsonite, the better the final mixture can perform, although it can also increase the risk of accumulation and separation. How to mix bitumen and Gilsonite After factors such as the components in bitumen and Gilsonite, the temperature and mixing conditions, as well as the size and concentration of the materials have been examined and approved, they can be mixed. In order to mix Gilsonite or natural bitumen with refinery bitumen.

It is necessary to pay attention to various points and matters. In the first stage, it is necessary to select the appropriate equipment and materials for this task. To mix these two materials, equipment such as an industrial mixer, an asphalt melting machine, a thermal kettle, etc. is needed. In the second stage, it is necessary to pay special attention to the way the materials are transported and stored, because it can affect their quality and final performance.

This mixture should be stored in a place that is away from any contamination. In the third stage, to use this mixture, attention should be paid to points such as surface cleanliness and setting the appropriate temperature for melting and mixing.

Types of methods for gilsonite in oxidized bitumen Different methods can be used to mix and combine refinery and natural bitumen, depending on the points and cases, and each can have its own advantages and disadvantages.

Wet process

This method involves adding Gilsonite in oxidized bitumen to hot refinery bitumen and mixing them using high-shear mixing equipment. This method can provide uniform dispersion of Gilsonite particles and improve the rheological and functional properties of the final mixture.

Dry process

In this method, Gilsonite powder must be added to the aggregate mixture and then covered with hot bitumen. In this method, the powder concentration must be precisely controlled, the particle size must be checked, and the mixing conditions must be provided to achieve a uniform and homogeneous mixture. Mixed process This method is also one of the common and practical methods in which it is possible to create a uniform and consistent mixture. The resulting mixture can have very good performance and good properties.