Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
Fig: Position of application of tack coat
Rock reinforcement - how it works? For rocks with widespread fractures, individual blocks resulting from these fractures can fall out and as a result slope failure can take pl
Q. Velocity distribution and flow formulae? Variation in velocity along a vertical in channel cross section is known to follow logarithmic distribution, maximum velocity being
how to make a leakproof joint with existing lintel
Factors Affecting Location Decision: Mining, quarrying and heavy manufacturing have capital intensive facilities that are costly to build and cover large area and use large q
What is grading modulus?
curing of brick masonry
How do you treat High Sulfate soils, Gypsum? Is it good practice to build on it?
moment area method
Properties of Ordinary Portland Cement (i) Chemical properties: Portland cement consists chemical compounds are following: (a) Tricalcium silicate 3 CaO.SiO 2 (C
design procedure
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd