Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January CE 7th Sem 71877 Pavement Design Previous Question Paper
Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (CE) (2012 to 2017) (Sem.?7)
PAVEMENT DESIGN
Subject Code : BTCE-818
M.Code : 71877
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Answer briefly :
1.
Define Superpave.
2.
What are the disadvantages of CBR method?
3.
How is pavement thickness calculated by Triaxial test method?
4.
Explain Inter Locking Concrete Block Pavement.
5.
Explain modulus of subgrade reaction.
6.
What are the critical stress combinations in concrete pavements during summer and winter?
7.
What are the functions of base courses in flexible and rigid pavements?
8.
Describe various critical load positions in slab.
9.
What are the steps involved in overlay design for flexible pavements?
10. What do you mean by perpetual pavement?
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SECTION-B
11. Discuss Westergaard's concept of temperature stresses in concrete pavements.
12. In CBR method of design, sometimes the origin of the penetration curve is shifted. Explain,
why?
13. Calculate the stresses at interior, edge and corner of a cement concrete pavement by
Westergaard's stress equation. Given, Modulus of elasticity of concrete = 3 ? 105 kg/cm2,
Poisson's ratio of concrete = 0.15, thickness of concrete pavement = 18cm, Modulus of
subgrade reaction = 8.5kg/cm2, Wheel load = 5100kg, Radius of loaded area = 15cm.
14. Explain bituminous pavement with cemented base.
15. What are the various wheel load factors to be considered in pavement design? Explain each
in detail.
SECTION-C
16. Explain briefly the Marshall method of Rituminous Mix design.
17. Describe step by step procedure for designing a Rigid Pavement with IRC method.
18. a) Explain the design considerations for spacing of (a) Expansion joints (b) contraction
joints with and without reinforcement.
b) Find the spacing between contraction joints for a 3.5m slab width having a thickness of
22cm for (a) Plain concrete slab (b) RCC slab.
The allowable tensile stress value in concrete and steel are 0.8 and 1400 kg/m2, coeff of
friction is 1.5.
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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This post was last modified on 26 June 2021