Tack coat – emulsified asphalts vs cutback asphalts, Civil Engineering

Assignment Help:

Tack coat - emulsified asphalts vs. cutback asphalts

Emulsified asphalt is a suspension of asphalt in water by employing an emulsifying agent that imposes an electric charge on asphalt particles so that they would join and cement together. Cutback asphalt is simply asphalt dissolved in petroleum. Purpose of adding emulsifying agent in water or petroleum is to decrease viscosity of asphalt in low temperatures. 

Colour of emulsion for tack coat is brown initially at the time of application. Afterwards the colour is changed to black when asphalt starts to stick to the surrounding and it's described as 'break'. For emulsified asphalts, when water has all evaporated, emulsion is said to have 'set'. Cutback emulsion is described to have been 'cured' when solvent has evaporated. There are numerous problems associated with cutback asphalts:

(i)  Emulsified asphalt can be diluted with water so that a low application rate could be achieved.

(ii) Evaporation of petroleum into atmosphere for cutback asphalt poses environmental problem.

(iii)Cost of production of petroleum is higher than emulsifying agent and water.  

1841_Tack coat – emulsified asphalts vs cutback asphalts.png

Fig: Position of application of tack coat


Related Discussions:- Tack coat – emulsified asphalts vs cutback asphalts

Dam, types of dam

types of dam

Determine the total active thrust by rebhann''s method, A retaining wall 3....

A retaining wall 3.6 m high supports a dry cohesion less backfill with a plane ground surface sloping upwards at a surcharge angle of 20° from the top of the wall. The back of the

Explain about warren truss, Q. Explain about Warren Truss? A truss is a...

Q. Explain about Warren Truss? A truss is a simple structure whose members are subject to axial compression and tension only and however not bending moment. The most common tru

Cement, Why we mixm pozzolona in cement

Why we mixm pozzolona in cement

Degree, what classes do you have to take and what are some school options?

what classes do you have to take and what are some school options?

Compute the thermal stresses in steel, Compute the thermal stresses in stee...

Compute the thermal stresses in steel: Consider the compound bar shown in below figure consisting of a steel bolt of diameter 18 mm, surrounded through a copper tube of outer

Structure analysis II, To determine a trusses ,beams and frames of two degr...

To determine a trusses ,beams and frames of two degree by compatibility equations and by castiglanoes theorem

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