Prime coat - road pavements, Civil Engineering

Assignment Help:

Prime Coat:

A prime coat is the application of a low viscosity binder, usually a bituminous emulsion, to a gravel, WBM or WMM surface, to enable the binder to fill up the voids. The rate of application is 0.6-1.5 Kg per sq m of the surface, the quantity depending upon the porosity of the surface. The application is done by a mechanical sprayer or by hand operated spraying lance.

Tack Coat

The tack coat is a bituminous application over a primed granular surface or an existing bituminous surface to promote a bond between it and the bituminous layers coming above. The tack coat is normally done with a bituminous emulsion at a rate of 0.2 to 0.45 Kg per sq m, depending upon the type of surface. Like a prime coat, the tack coat is applied by spraying with a mechanical sprayer or a hand held lance.


Related Discussions:- Prime coat - road pavements

Light and rapid rail transit, Light Rail Transit (LRT) Light Rail Tra...

Light Rail Transit (LRT) Light Rail Transit is also known by the name train. LRT can be run on the surface if road space is available (as in Kolkata) or as elevated, with pil

Coating on concrete – complete im-permeability to moisture, Q. Coating on c...

Q. Coating on concrete – complete im-permeability to moisture? In designing protective coating on concrete structures, stoppage of water ingress by the coating is generally req

Deflection in concrete structures, Tension reinforcement leads to increasin...

Tension reinforcement leads to increasing deflection in concrete structures? In BS8110 a modification factor is applied to span/depth ratio to take into account effect of tens

Estimate prestress losses, Given: beam deminsions: flange width=22" FL...

Given: beam deminsions: flange width=22" FLANGE THICKNESS=7" WEB WIDTH=7" SECTION HEIGHT=40" f'c=5000psi f'ci=3500psi fpu=270ksi Ap=eighteen 1/2" diam strands superim

Working from whole to part, explain the principle of working from whole to ...

explain the principle of working from whole to part, as used in surveying

What is stress corrosion, What is Stress Corrosion Stress corrosion ta...

What is Stress Corrosion Stress corrosion takes place in prestressed concrete tendons due to the combined actions of corrosion and static tensile stresses. This type of attack

engineering drawings, Triangular prism axis is parallel to both HP and V

Triangular prism axis is parallel to both HP and VP

Axial flow pumps for large flows and low heads, Q. Axial flow pumps for lar...

Q. Axial flow pumps for large flows and low heads? It is well known that axial flow pumps are the most suitable for providing large flows and low heads. Reason behind this is c

Will water damage concrete, As far as only concrete is concerned i.e. plain...

As far as only concrete is concerned i.e. plain concrete, the effect of water seepage is very little (depending upon the grade of concrete) whereas for RCC (reinforced cement concr

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