![]() ![]() Slow setting emulsion is the most stable type of emulsion and can be used in dense graded aggregate bases, slurry seals, and recycling asphalt.Īnother factor that can affect the reactivity of bitumen emulsion is the temperature of the surface onto which it is applied. That’s why it is suitable for being mixed with aggregates of high surface area. The last one is slow setting emulsion which sets very slowly. The second type is medium setting emulsion which is used in premixing of bitumen emulsion and coarse aggregate, particularly open graded mixes. The first one is rapid setting emulsion which sets quickly in contact with aggregates therefore, it is highly used in low surface of roads, particularly chip seals and surface dressing. As previously said, there exist three types of the bitumen based on the setting time. When bitumen emulsion is applied to a surface, choosing the right setting type is crucial. This parameter determines whether the bitumen is rapid setting emulsion, medium setting emulsion, and slow setting emulsion. ![]() The time that is needed for bitumen emulsion to lose water and behave like an ordinary bitumen, is called the reactivity rate. Technically, breaking means the evaporation of water, which makes bitumen strong enough for sticking to aggregates and setting on the place of application. When applied to a surface, bitumen emulsion must break and set. The second grading system of bitumen emulsion is closely related to the application. Otherwise, the bitumen is known as cationic and has the “C” letter. In an emulsion, if the particles’ charge is negative, the bitumen emulsion is called Anionic and introduces itself with the letter “A”. Various emulsions are classified based on two main factors: The resulting bitumen has a consistent structure that makes it unique for various applications.Ĭheck out Our Article about Bitumen Production Process In the manufacturing process, many factors such as droplets’ size, chemical addition, and the temperature of various components are accurately controlled. Water droplets also move closer to the tiny bitumen droplets, ensuring that the final bituminous product is stable enough. With the addition of emulsifiers, bitumen droplets become more water friendly. Some aggregates (such as marble aggregates) mix well with anionic bitumen emulsion and some others are a better solution to cationic bitumen emulsion (such as granite aggregates). The electronic charge of bitumen emulsion decides on what kind of surface it should be used. ![]() This makes bitumen dispersion in water more durable. In addition to their ability to reduce the tension between oil and water molecules, emulsifiers have an electronic charge that affects the molecules of bitumen emulsion and leads to categorizing it into Cationic and Anionic.Ĭationic emulsifiers, for example, form a layer of positive charge around the bitumen droplets that prevent them from joining each other. Generally speaking, the amount of bitumen in the bitumen emulsion is 55 to 65%, the amount of water 35 to 45 %, and the amount of emulsifiers should be a maximum 0.5% of bitumen emulsion’s weight.Įmulsifiers are used for making a mixture of water and oil dispersed in each other. Infinity Galaxy, Bitumen Emulsion Supplierīitumen emulsion is a combination of water and bitumen.Īs the mixture of water and oily products quickly separate, a third component, known as emulsifier, is normally added to the mixture in order to make it more stable.Advantages of Bitumen Emulsion to Cut Back.What Factors are Important in Grading Bitumen Emulsion?. ![]() Bitumen Emulsion Grades and Specifications.An Explanation of Bitumen Emulsion Prefixes and Suffixes.Moreover, applying bitumen emulsions using cold techniques reduces energy consumption and makes road construction environmentally friendlier.Īre you interested in learning more about bitumen emulsion? Follow this article. Since this type of bitumen is liquid, there is no need to heat it before application. Bitumen emulsion is a liquefied type of bitumen with a low viscosity.īy dispersing bitumen in water and adding an emulsifier, ordinary bitumen turns into a low viscosity liquid that can easily be used in a variety of applications, including repairing and maintaining roads, waterproofing, spraying, etc.Įmulsions make it easy to handle, store, transport, and apply bitumen at a lower temperature. ![]()
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