Bitumen Emulsion Manufacturers and Supplier in INDIA

Bitumen emulsions are a type of liquefied bitumen that has a low level of viscosity.

Bitumen can be easily transformed into a low-viscosity liquid by dispersing it in water with an emulsifier. This can then be used for a wide range of applications including road maintenance, waterproofing and spraying.

Emulsions allow bitumen to be handled, stored, transported, and applied at lower temperatures.

This type of Bitumen does not require heating before use.

The use of cold application techniques for bitumen emulsions reduces the energy consumed and improves the environmental friendliness of road construction.

What is Bitumen Emulsion

Composition (BEC)?

Bitumen emulsion consists of a mixture of bitumen and water.

In order to stabilize the mixture, which is a mixture of oil and water, an emulsifier (also known as a coagulant) is usually added.

In general, the amount bitumen should be between 55 and 65% of the total weight of the bitumenemulsion, while the amount water should be 35 to 45%. The amount of emulsifiers, however, must not exceed 0.5%.

Emulsifiers can be used to make a mixture that is a mix of oil and water.

Emulsifiers can reduce the tension of oil molecules in water emulsions. They also have a charge on the bitumen molecules that allows them to be classified as Cationic or Anionic.

Cationic emulsifiers form, for instance, a layer of charge positive around the bitumen drops that prevents them from joining together.

The bitumen will not float as much in the water.

The type of surface on which bitumen emulsion should be applied is determined by the electronic charge.

Some aggregates, such as marble aggregates, mix better with anionic bitumen. Others (such granite aggregates), are better suited to cationic emulsion.

How does Bitumen Emulsion get manufactured?

A colloid mill is used to mix bitumen, water and an emulsifier. This process mills bitumen into small droplets which can easily float in water.

Bitumen drops become more water-friendly with the addition of emulsifiers. The water droplets move closer to the bitumen drops, which ensures that the bituminous final product is stable.

The manufacturing process involves the precise control of many factors, such as the size of droplets, the chemical addition and the temperature.

The bitumen produced has a uniform structure, making it suitable for a wide range of applications.

What factors are important in grading bitumen emulsion?

1 Viscosity                                                            

Viscosity is the first factor to consider when grading bitumen. This value is determined by performing a test.

The amount of bitumen in the emulsion determines its viscosity.

Bitumen emulsions with a lower viscosity are needed for densely graded aggregates. However, bitumen-emulsions of a higher viscosity should be used for open-graded aggregates.

A small emulsion droplet size with a narrow distribution gives a viscosity.

2- Ductility

A ductility test is performed to determine the resistance of bitumen to breaking.

This system measures how far a bitumen sample can stretch without breaking.

Bitumen emulsions with a ductility greater than 40 cm make the road surface strong and safe for heavy traffic. They also do not crack easily. Bitumen that has a low ductility can crack in cold weather.

Here you can find out more about the different types of bitumen standard tests.

3- Penetration

Entering a standard needle in bitumen will indicate its softness.

The bitumen that is harder will perform better in high temperatures.

The standard penetration range can differ between different grades of bitumen.

For more information on penetration testing, visit .

4- Storage Stability

Storage stability, also known as sedimentation stability, shows whether the bitumen droplets have settled after manufacture or not.

A sample of bitumen, stored at room temperature in a cylinder, is used to test the sedimentation of bitumen-emulsion.

Two samples will be taken after 24 hours. One from the top and one from the bottom. At the next step, two samples' weights will be compared.

The weight difference between two samples should not be more than 1 unit.

The viscosity and droplet size are the two main factors affecting the storage stability.

Bitumen with smaller drops has a lower risk of settlement.

Particle Charge 5-

The particle charge test can determine whether an emulsion is anionic or caionic.

Two electrodes, one positive and the other negative, are placed in the emulsion.

One of the electrodes conducts DC current through emulsion within the container.

After 30 minutes, the electrodes are examined again to determine if any bitumen has been applied.

The cationic emulsion sediments on the cathode, while the anionic emulsion sediments on the positive electrode.