Bitumen Emulsifier

For the preparation of the bitumen emulsion must be sufficiently smooth then pour it into the water, do the following:
- Apply energy, the best way to spread the it in water
- Addition of a stabilizing substance called bitumen emulsification to mix the primary role of stabilizing emulsification

A mixture of tar and particles clinging to the surrounding electrical charging them so repellent each other.
In the preparation of bitumen emulsion of small amounts of a chemical compound to facilitate cell formation it and is added to the permanent suspension called emulsification emulsifier used primarily in the preparation of each emulsion should end as soon poke otherwise immediately cells interconnected and form a continuous phase and hence the formation of a continuous phase of emulsification. However, in the presence of a thin film of chemical composition as emulsifier mixture is added to the cells is called bitumen, the thin film acts as a protective coating and prevents the cells from joining. Emulsification can be divided into four categories, the first and second are of greatest importance.
Bitumen emulsion preparation method:
Today, two commercial methods for producing it is needed for conventional construction include:
(A) Method Colloid mills
(B) Blending fast

Colloid mills:
Colloid mills of a rod that is located inside a cylinder formed gap between the bars and the lining layer of about 5 / 0-3 / 0 mm.On the other hand mill, its emulsion that is homogeneous out Grdd.bh state aid Colloid mills can be used for up to 10,000 liters of its emulsion.
rapid mixer method:
In this method, hot bitumen emulsion into a dilute solution of alkali and operation of the interplay between organic acids and alkali-soluble binder is done for the same amount of water 800 Gyrd.trz act in this way that the temperature It's up near the boiling point is reached in a blender into Myknd.mkhlvt Cannes 1200 liters equipped with a device with a propeller stirrer that are rapidly.
The woman at the center of the mixer should be installed together because of its vortex. Usually women are slightly farther from the center of each mixer installed. Alkaline water mixing with hot it and then heated to about 100 ° C Dardahsth but with continuous stirring is continuous mixer. The emulsion prepared in this way the uniformity of Colloid mills are not exposed to air causes evaporation of the emulsion water, leading to a close or clotting shell emulsion.