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

Calculate the total labor cost per cubic yard, A contractor will place 90-c...

A contractor will place 90-cubic yards of concrete for a housekeeping pad on the rooftop of a 36-ft tall building. Site conditions dictate that the safest and best method of placem

DC POWER SUPPLY, DESIGN A LINEAR DC POWER SUPPLY WITH THE FOLLOWING SPECIFI...

DESIGN A LINEAR DC POWER SUPPLY WITH THE FOLLOWING SPECIFICATION,SHOW DETAILS STEPS AND CALCULATION...Vload :12v Iload :0.07A Vripple load(p-p) :0.01v TA :45 DEGREE CELCUS

What is pratt truss, Q. What is Pratt truss? Pratt truss is characteriz...

Q. What is Pratt truss? Pratt truss is characterized by having its diagonal members (except the end diagonals) slanted down towards the middle of bridge span. Under such struct

Design the transverse reinforcement, Figures (a) and (b) respectively give ...

Figures (a) and (b) respectively give details of a simply-supported bridge beam and its (idealised) cross-section. In addition to the dead load of 25 kN/m (including self weight),

Overhanging beams, Do we take the whole length (including the over hanging ...

Do we take the whole length (including the over hanging portion when we say the "whole span" of th beam ?

Draw sketch for track in a cutting on a mainline route, Q. Draw a neat dim...

Q. Draw a neat dimensioned cross-sectional sketches of a - i. New single Line B.G. track in a cutting on a mainline route. ii. New double Line B. G. track on a trunk route ha

Local vehicle parapet strong enough to contain vehicles, Q. Local vehicle p...

Q. Local vehicle parapet strong enough to contain vehicles? Majority of local parapets are 1.1m high in addition they are designed to resist impact from a 1.5ton car moving at

Harbours, natural phenomenon affecting the designs of harbours

natural phenomenon affecting the designs of harbours

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