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

Offset, what is the meaning of offset

what is the meaning of offset

Verify the coefficient of elastic uniform compression, Verify the coefficie...

Verify the coefficient of elastic uniform compression if a vibration test on a concrete block of 1 m cube gave a resonant frequency of 36 Hz in vertical vibration. The weight of

Optical square, Using an optical square how would you perform a rectangular...

Using an optical square how would you perform a rectangular tie?

Project management, know the planking and strutting for shallow excavation...

know the planking and strutting for shallow excavation

Concrete, What is compacting factor

What is compacting factor

Determine the types of untensioned reinforcement, Determine the types of un...

Determine the types of untensioned Reinforcement  Reinforcement used as untensioned steel should be one of the following types : (a)  Mild steel and medium tensile steel bar

Fly levelling, what is meant by fly levelling and when it is carried out ?

what is meant by fly levelling and when it is carried out ?

Maintenance of terminal building, Maintenance of Terminal Building: A...

Maintenance of Terminal Building: All accessories such as lighting, water, sanitation, telephone and public address system should be maintained in a good condition. Disposal

Calculate the total passive earth resistance on the wall, A  retaining wall...

A  retaining wall, 4.5 m high, retains a soil with  c = 2 N/cm 2 ,  φ = 30° and g = 20 kN/m 3 , with horizontal surface level with the top of the wall. The backfill carries a surch

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