Download PTU B.Tech 2020 March Civil 7th and 8th Sem BTCE 818 Pavement Design Question Paper

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Roll No. [ 1] [ 1] [ | Total No. of Pages : 02
Total No. of Questions : 09

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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1. Answer briefly :
   1. Define Warping Stresses.
   2. What do you mean by overlay and write various types of it?
   3. What is the basic design difference between airport pavement and highway pavement?
   4. What are the different types of joints in cement concrete pavements?
   5. What are the drawbacks of CBR method of flexible pavement design?

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   6. What were the objectives of the AASHTO Road test?
   7. Define CRCP.
   8. What do you mean by fibre reinforced concrete for pavements?
   9. What is the formula used for design of a dowel bar?
   10. Define Perpetual Pavements.

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SECTION-B

2. Explain :
   1. Radius of relative stiffness.
   2. Equivalent radius of resisting section.
   3. Critical Loading positions.

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3. Write down the design steps for slab thickness of cement pavement, recommended by IRC: 58-2011.
4. Explain briefly the fatigue behaviour of the concrete & how it is utilized in the PCA design method.
5. Write down the various factors affecting the pavement design. Explain it.
6. Explain the Marshall method of bituminous mix design.

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SECTION-C

6. 1. Give a sketch showing the various layers in pavements, generally adopted in India.
   2. What are the functions of each of the above layers?
7. 1. Explain the Boussinesq’s theory and how it can be used for the design of highway pavements.

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   2. Write down its limitations.
8. Check the adequacy of dowel bar system for a concrete pavement using the following data.
   Slab thickness = 33 cm
   Joint width =2 cm
   

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   Radius of relative stiffness = 103.53 cm
   Design wheel load = 8000 Kg
   Percentage of load transfer =40
   Grade of concrete to be used = M40
   Diameter of dowel bar.= 32 mm
   

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   Spacing of dowel =32 cm
   Modulus of dowel/concrete interaction = 41500 kg/cm²/cm
   E for steel =2 x 10⁶ Kg/cm²

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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