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

Use Structural Analysis in Engineering, As per Australian Standard AS 1170,...

As per Australian Standard AS 1170, what are the different types of loads that can be encountered by structures which need to be taken into account for their design?

False set in pile driving, Q. False set in pile driving? For pile drivi...

Q. False set in pile driving? For pile driving in certain soils such as dense silt and weathered rock, occurrence of false set phenomenon isn't uncommon. During the driving pro

Difference between direct circulation and reverse drilling, Question Wh...

Question What is main difference between direct circulation drilling and reverse circulation drilling? Answer In straight circulation drilling and reverse circulati

Explain horizontal circular curves - transportation, Explain Horizontal Cir...

Explain Horizontal Circular Curves - Transportation Horizontal circular curve is a circular arc between two straight lines known as tangents.

Support, In a RC Frame what will be the support condition for a cantilever ...

In a RC Frame what will be the support condition for a cantilever edge beam i.e. fixed, pinned, encastre or knife?

Survey, how can I use reciprocal type of leveng method to level a ground, a...

how can I use reciprocal type of leveng method to level a ground, and a procedure

Airport., draw a typical layout of airport ?

draw a typical layout of airport ?

Numericals on settlement of foundation, A footing foundation for a water to...

A footing foundation for a water tower carries a load of 9000 kN and is 3.6 metres square. It rests on dense sand of 9 m thickness overlying a clay layer of 3 metres depth. The cla

State the maximum amount of resistance in a pole, State the maximum amount ...

State the maximum amount of resistance in a pole The maximum amount of resistance in a pole is generally required at the base and, so, the maximum cross sectional area is requi

Explain box jig, Explain Box jig? a) The box jig is so named because of...

Explain Box jig? a) The box jig is so named because of its box shaped construction, closed from most of the sides. b) It is normally designed for those components having awk

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