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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.
Explain the term - Circular Prestressing This term refers to the case when tendon profile is provided in a round shape, such as in water tanks and pipes, etc.
Testing of Aggregates: For use in pavement, road aggregates have to be strong, durable and of good shape. A well-graded aggregates adds to the stability of the layer. The fol
Maintenance of Earth Roads: The main task in maintaining the earth road is to ensure that cross-section is intact and is free from rutting, depressions and corrugations, and
in direct pumping system
Foundation at Different Levels on soft rock. what is minimum distance in two between footing ?
collect the field deta manualy and drw the drawing as per scale
Materiality is used only at the planning stage of the audit. Ans: I disagree with the statement because: When planning the audit, the auditor considers what would make the fi
Compute Interior or Intersection Angle for the following circular curve: Answer- I = 180° - 60° - 60°= 60
Q. Purpose of using capping layers in pavement construction? When California Bearing Ratio of subgrade is checked to be below a specific percentage (for example 5%), a capping
how to compute the compound elements particularly outstanding element of compression flange if 2-ismb300 are placed side by side
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