All you need to know about Bitumen Emulsion

Bitumen Emulsion is one of the major elements which is used in road construction and maintenance. It is a two-phase system which comprises of bitumen, water and one or more additives (Emulsifiers). Bitumen is dispersed all through the water phase in the structure of discrete globules normally in the range of 0.1 to 10 micron in size, which is held in suspension in water and prohibited from flocculation and settling by emulsifier charges. The emulsifier plays a significant role to keep the bitumen droplets in a steady suspension, control breaking time and aids bond also.

Bitumen Emulsion classically contains 50-75% bitumen, o.1-2% emulsifying means and rest water. These components are set up into a colloid mill that works at a very high-speed motor (1000-6000 rpm) which shears bitumen emulsion into minute globules. Variable Rotor Stator Gap in Colloid mill controls bitumen substance. The size of globules that in turn manages the stickiness of bitumen emulsion. There are a number of Bitumen Emulsion Manufacturers in India from where you can quality product.

Classification of Bitumen Emulsion

Bitumen Emulsion is distinguished on the basis of Electrical Charge. Emulsifier encloses itself on the bitumen droplet and offers electrical charge on the facade of bitumen globules avoiding them to coalesce.

ANIONIC

It is the first group of emulsion that was engineered for road construction. Due to their negative globules, they are less resourceful than other two that is Cationic or Nonionic. It is suitable for Calcareous aggregate similar to limestone, dolomite etc.

NON-IONIC

This type of Bitumen is actually very Rarely used for road construction and maintenance.

CATIONIC

Due to their constructive charge, the emulsion coats the aggregate competently and show offs efficient adhesion attributes. Cationic Emulsion also wakes up as anti-stripping agents so highly approving in the construction industry and hence is most broadly used. Such emulsions are most appropriate for siliceous aggregate similar to quartzite, sandstone, granite, etc.

Production of Bitumen Emulsions

Bitumen emulsions are typically made using a colloid mill, although other dispersion devices are possible, too. In the colloid mill, energy is used to the system by transient the mixture of hot bitumen and water phase between a rotating rotor and stator. Bitumen emulsions can be produced either in a batch or an in-line process plant.

Thus there are a number of Bitumen Emulsion Manufacturers in India from where you can know about the detailed processing and get the different category of Bitumen required according to your need.

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Created on Dec 19th 2017 07:15. Viewed 365 times.

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