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

Define the coefficient of permeability - hydraulic system, Define the Coeff...

Define the Coefficient of Permeability: (K) A measurement of the ability of the soil or an aquifer for the movement of water through it. Also termed "hydraulic conductivity", C

Distomat., write a note on distomat

write a note on distomat

Properties of elastomer, An elastomer is a polymeric substance obtained aft...

An elastomer is a polymeric substance obtained after vulcanization of rubber. Vulcanization is the process of improving the properties of rubber by heating with sulphur. A normal r

Steel overlap in columns, where we can overlap steel in columns if we use ...

where we can overlap steel in columns if we use 50 or 60 bar diameter as overlap length.

Fire resistance of steelwork, Q. Fire resistance of steelwork Because ...

Q. Fire resistance of steelwork Because of the high thermal conductivity of steel, temperature of unprotected steel is almost the same as temperature of fire. Because the yiel

Shear stress distribution on sections, is shear stress distribution on I an...

is shear stress distribution on I and T sections are same????

Landslides - road under special conditions, Landslides: Landslides ar...

Landslides: Landslides are common in the Himalayan hill roads. The main causes contributing to landslides are: (a) Removal of lateral support at the bottom of a hill due t

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