Explain modulus of resilient of subgrade.
[3 marks]Discuss advantages of modified bitumen in brief.
[4 marks]Explain various pavement layers with neat sketch.
[7 marks]Write a short note on penetration macadam.
[3 marks]Compare alternate bay and continuous bay methods of construction of cement concrete road.
[4 marks]Write the construction procedure for WBM
[7 marks]Explain Dry lean concrete. Write the advantages of dry lean concrete
[7 marks]The standard single axle load is 8.2 Tonnes. The axle load spectrum from a survey data is presented in the following table. Find the value of VDF using fourth power damage law. Axle Load 17-15 15-13 13-11 11-09 09-07 07-05 range (tonne) Percentage 5 20 25 37 10 frequency
[3 marks]State the procedure of Marshall stability test.
[4 marks]Explain Burmister three layers theory with neat sketch.
[7 marks]Write a short note on ESWL .
[3 marks]Compute the design traffic (in msa) for bituminous pavement by considering the following data • Four lane divided carriageway • Initial directional traffic in the year of completion of construction = 2500 cvpd • Traffic growth rate per annum = 6.0 per cent • Design life period = 20 years • Vehicle damage factor = 5.2
[4 marks]Write the steps to be followed for analysing flexible pavements using IITPAVE.
[7 marks]Discuss the importance of drainage in pavement design.
[3 marks]Explain factors affecting pavement design.
[4 marks]Calculate the stresses at interior, edge and corner region of cement concrete pavement using Westergaard’s stress equations. Take wheel load = 5000 kg,1 Ec = 3.1 x 105 kg/cm2 , Pavement thickness = 20 cm, μ = 0.15, Modulus of subgrade reaction K = 7 kg/cm3, Radius of contact area = 15cm
[7 marks]Define: (1) Modulus of subgrade reaction (2) Poison’s ratio (3) warping stress
[3 marks]Differentiate between dowel bar and tie bar.
[4 marks]Discuss the critical combination of stresses due to wheel load and temperature effects in rigid pavement.
[7 marks]Enlist and explain type of pavement maintenance.
[3 marks]Explain the advantages of concrete block pavement. Enlist various types of concrete blocks.
[4 marks]Classify pavement distress in flexible pavement and mention the causes and preventive measures of any three type of distress as per IRC 82:2015
[7 marks]Enlist functions of Pavement Maintenance Management System.
[3 marks]What are the benefits of white topping as per IRC SP:076-2015
[4 marks]Enlist various aspects of recycling and explain hot in place recycling in detail.
[7 marks]