Difference between anionic emulsions and cationic emulsions, Civil Engineering

Assignment Help:

Q. Bitumen emulsions - difference between anionic emulsions and cationic emulsions?

Bitumen emulsions comprises particles of bitumen dispersed in water by using emulsifying agent. When emulsion breaks, it signifies a change from a liquid to a coherent film with bitumen particles coagulating together. The sign of breaking is the change of colour from brown to black as the colour of emulsion and bitumen is black and brown respectively. 

There are in common two broad types of emulsions, viz.cationic emulsions and anionic emulsions. The breaking of anionic emulsions is dependent on the evaporation of water from bitumen emulsion. It poses difficulty in wet weather condition. Though for cationic emulsions, in place of relying on the evaporation of water the breaking is achieved by chemical coagulation. Therefore cationic emulsions are chiefly useful in wet weather conditions.


Related Discussions:- Difference between anionic emulsions and cationic emulsions

Measurements, Explain the concept of average velocity

Explain the concept of average velocity

Surveying, description of instruments used transfer upper floors *plumb-bob...

description of instruments used transfer upper floors *plumb-bob method *theodolite method *theodolite and target method *optical plumbing method

Explain the perception reaction time, Explain the Perception Reaction Time ...

Explain the Perception Reaction Time A significant variable in the successful processing and use of information is the speed with which this is done. Perception-Reaction Time (

Determine the normal and shear stress elements, Determine the normal and sh...

Determine the normal and shear stress elements: The state of stress at a point is given through the stress components σ x = 70 MPa, σ y = 10 MPa, and τ xy = - 40 MPa. Using

Determine stability of the upstream slope of an earth dam, Stability of the...

Stability of the upstream slope of an earth dam Give the step by step procedure for examining the stability of the upstream slope of an earth dam by the Swedish method of slice

Explain template jig, Explain Template Jig? 1) Template jig is the simp...

Explain Template Jig? 1) Template jig is the simplest type of jig, employed for accuracy than speed. 2) This jig fits over, on, or, into the work and is not generally clampe

Function of a separation membrane amid concrete pavement, Question What...

Question What is main function of a separation membrane amid concrete pavement slab and sub-base ? Answer Division membrane between concrete pavement slab and sub-bas

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd