07A80106 Pavement Analysis & Design B.Tech Question Paper : scce.ac.in

Name of the College : SREE CHAITANYA COLLEGE OF ENGINEERING
University : JNTUH
Department : Civil Engineering
Subject Code/Name : 07A80106/PAVEMENT ANALYSIS AND DESIGN
Year/Sem : IV/II
Website : http://scce.ac.in/web/
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/scce.ac.in/4907-07A80106-PAVEMENTANALYSISANDDESIGN.pdf

SCCE Pavement Analysis & Design Question Paper

IV B.Tech II Semester Examinations,April/May 2012
Time: 3 hours
Max Marks: 80

Related : Sree Chaitanya College Of Engineering 07A80107 Soil Dynamics & Machine Foundations B.Tech Question Paper : www.pdfquestion.in/4906.html

Set No.1

Answer any FIVE Questions :
All Questions carry equal marks :
1. Explain the stress computations in single layer, two layer and multi layer elastic theories. [16]
2. What are the different approaches in Flexible Pavement Design? Bring out salient features of each approach. [16]

3. What is meant by overlay? Explain the necessity of overlays? What kind of general procedure is adopted for preliminary evaluation of highway condition? [16]

4. Estimate the thickness of cement concrete pavement using the method suggested by IRC (old method) and take the following data:
modulus of elasticity of concrete = 3.105 kg/cm2, modulus of rupture of concrete =45 kg/cm2, Poisson’s ratio of concrete =0.15, modulus of sub-grade reaction =6.5 kg/cm3, design wheel load = 5100kg and radius of contact area =16cm. [16]

5. (a) What are the various combinations of stresses considered in concrete slab design?
(b) Write the significance of Modulus of subgrade reaction & radius of relative stiffness. [16]

6. List out the factors that are considered for Design of pavement. Explain the terms EAL & ESWL and how they ae employed in pavement analysis and Design. [16]
7. (a) Explain the construction procedure of embankments.
(b) Describe the significance of soil compaction at sub-grade level. [8+8]

8. Describe Marshal Method of mix design with neat sketches.
Highlight the following:
stability, density, volume of voids, flow, voids filled with bitumen etc. [16]

Set No. 2

1. What are the different types of pavements commonly used in India? Briefly explain the features of each of them. [16]

2. Describe the procedure for patch repair works in:
(a) WBM pavement
(b) Bituminous pavement
(c) Earthen roads. [16]

3. (a) What are the different types of stresses that are to be considered in flexible pavement design?
(b) Explain the brief concepts of layered system in flexible pavements. [8+8]

4. Explain briefly the principle and the steps involved in CBR method of pavement design using cumulative standard axels, recommended by IRC. Discuss the assumptions, advantages and limitations of this method. [16]

5. A plate load test is carried out on soil sub grade soil using a 300 mm radius rigid plate. A load of 5 tonnes resulted in a deflection of 1.20mm. Find out the elastic modulus of the soil if the Poisson ratio is 0.4. [16]

6. Discuss Westergaard’s concept of temperature stresses in concrete pavements. Find the spacing between contraction joints for a 3.75 m slab width having a thickness of 25 cm for Reinforces cement concrete slab. Take allowable tensile stress values in concrete and steel are 0.80 and 1400 kg/cm2, coefficient of friction is 1.50. [16]

7. Explain different types of stresses which occur in Rigid pavements. Explain clearly how this stresses are developed and their relative significance in the design and performance of the pavements. [16]

8. (a) List out and explain briefly about the compaction equipment.
(b) What are the two important field control tests used for adequate quality control? [8+8]

Pavement Analysis & Design

1. (a) Discuss the step by step procedure for design of flexible pavement by FRC method for a National Highway in Rajasthan bringing out the salient features of design.
(b) Brie y explain AASHO method of flexible pavement design. [8+8]

2. Explain various soil classification systems in use in the field of highway engineering. Describe the Unied soil classification system and show the plasticity chart. [16]
3. What are the ddifferent stresses the rigid pavements are subjected to? Discuss. [16]

4. Explain the principle used of Benkelman beam test. Write a descriptive note on pavement evaluation and maintenance. [16]
5. What are the factors governing pavement design? How do you design the traffic for finding of cumulative number of repetitions of axles for the design period? [16]

6. (a) Briefly comment on the types of pavements bringing out their behaviour with respect to loads.
(b) What are the principles in the design of the pavement? [8+8]