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Q. Function of prime coat in bituminous pavement?
The main function of prime coat in bituminous pavement is to protect the subgrade from weathering andmoisture. Because the presence of moisture affects the strength of subgrade, prevention of water entry at the time of construction is essential to avoid the failure of the pavement. In cold countries, by getting rid of moisture from subgrade, danger of frost heave can be minimized.
Prime coat is an asphalt that, when applied evenly to the surface of subgrade orsub-base, serves to seal the surface to hinder the penetration of moisture into subgrade. Vehicular traffic must be avoided on the surface sprayed with prime coat since the traction and tearing action of vehicles would damage this asphalt layer.
Fig: Position of application of prime coat
Enumerate about the Bonded Member It is a concrete member in which tendons are bonded to the concrete. They may be directly bonded to the concrete as in the case of pre-tension
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Q. Explain P Trap? Trap is a depressed or bent sanitary fittings which always remains full of water it is water seal. Its functions are to prevent passage of foul air or gas
how to calculate grading modulus
Traffic Surveys: The following traffic surveys are needed for preparing a good road project: Classified Volume Counts This survey is normally carried out for 7 days,
Absolute is equivalent to gauge pressure plus atmospheric.
note on distomat
Schedule control is concerned with all of the following except: a. Influencing the factors which create schedule changes b. Determining that the schedule has changed c.
Calculate the Benefit-Cost Analysis Ratio A city engineer is deciding which of two alternatives to select. If the interest rate is 10% per year, the Benefit-Cost analysis rat
pls tell about flat footed rail and it weight how much for 40 * 80 *10 mm
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