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
Millennium mills redevelopment project assignment in group Presentation
Explain Some Points regarding to Hardness 1) Hardness removal using lime and soda is based on the solubility reactions of calcium carbonate, CaCO 3 and magnesium hydroxide, Mg
Q. Show the Excessive movement joints in bridges? Movement joints are generally added to bridge structures to accommodate movements because of dimensional changes arising from
Question In designig of watermains, how to decide usage of double air valves and single air valves ? Answer Single air control device let squeezing air out of p
write a note on distomat
The integration of strain over the depth is settlement. The method of producing the settlement is non-recoverable when the intensity of stress is removed. Hence, a permanent reduc
The plan of a proposed spoil heap is shown in Fig. The heap will stand on a thick deposit of soft clay with E-value 15 MN/m 2 . The uniform pressure on the soil may be suppose as 1
What is the easiest way to give proof the varignon''s theorem? Help please guys
State the Moulds in Prestressed Concrete Moulds for pre-tension work should be sufficiently strong and rigid so that they can withstand the effects of placing and compacting th
The most probable value of the following observations on the same angle (35º 17' 42" ; 35º 17' 38" ; 35º 18' 00" ; 35º 17'; 22"; 35º 17' 42"); is most nearly: 35º 17' 40.8
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