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

Roads, how to calculate number of passes while compaction

how to calculate number of passes while compaction

Surveying, working from whole to part

working from whole to part

Unsymmetrical bending, An 8 kN.m moment is applied at the end of a block fi...

An 8 kN.m moment is applied at the end of a block fixed into the ground as illustrated in thefigure below. The moment vector (double arrow head representation) acts in line with th

Define vertical curves - transportation, Define Vertical Curves  - Transpor...

Define Vertical Curves  - Transportation 1) Vertical curves are used to change the grade of a highway. 2) Most vertical curves take the shape of an equal-tangent parabola.

Baur leonhardt system, What is the special feature of this system rather th...

What is the special feature of this system rather than other?? What do you mean by principal of looping system?

Methods of constructing roads in marshy areas, Methods of Constructing Road...

Methods of Constructing Roads in Marshy Areas: The following methods are adopted for constructing roads in marshy areas: (a) Removal of soft soil and replacement with good

#titlemichelson interferometer.., Describ the construction and working of M...

Describ the construction and working of Michelson interferometer and discuss tha method to determine wavelength of monochromatic

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