JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• 1. To identify the type of pavement and to know the stress distribution
• 2. To learn the deflection criteria in soils for different pavements
• 3. To know the characteristics of the rigid pavements and flexible pavements
• 4. To carry out design and evaluation of flexible and rigid pavements in various field conditions.

Course Outcomes

At the end of the course, student will be able to:

• 1. Understand various pavement material characterization techniques
• 2. Estimate the stresses and strains in pavements under different wheel load configurations and other conditions
• 3. Design of flexible and rigid pavements as per specification such as Morth &IRC

UNIT - I

Introduction: Types and component parts of pavements, Factors affecting design and performance of pavements. Highway and airport pavements, field CBR, field plate load test, modulus of sub grade reaction, Resilient modulus, Suitability of soil, Compaction equipment and Compaction Control.

UNIT - II

Stresses and strains in flexible pavements: Stresses and strains in an infinite elastic half space use of Boussinesq's equations - Burmister's two layer and three-layer theories; Wheel load stresses, various factors in traffic wheel loads; Equivalent single wheel load of multiple wheels. Repeated loads and EWL factors.

UNIT - III

Flexible pavement design methods for highways and airports: Empirical, semi-empirical and theoretical approaches; Development, principle, design steps of the different pavement design methods including AASHTO, Asphalt Institute, Shell Methods. IRC method of pavement design.

UNIT - IV

Stresses in rigid pavements: Types of stresses and causes; Introduction to Westergaard's equations for calculation of stresses in rigid pavement due to the influence of traffic and temperature; Considerations in rigid pavement analysis, EWL; wheel load stresses, warping stresses, frictional stresses, combined stresses.

UNIT - V

Rigid pavement design: Design of cement concrete pavement for highways and runways; Design of joints, reinforcements, tie bars, dowel bars. IRC method of design; Design of continuously reinforced concrete pavements.

REFERENCES:

• 1. Atkins, N. Harold, Highway Materials, Soils and Concretes, Fourth Edition, 2002, Prentice- Hall.
• 2. Yang H Huang - Pavement Analysis and Design, 2nd Edition, Pearson Education
• 3. Yoder.J. & Witzorac Mathew, W. Principles of Pavement Design, John Wiley & Sons Inc
• 4. Kerbs Robert D. and Richard D. Walker, Highway Materials, McGraw-Hill, Design of Functional Pavements, Nai C. Yang, McGraw Hill Publications R19 M.TECH GEOTECHNICAL ENGG.
• 5. Concrete Pavements, AF Stock, Elsevier, Applied Science Publishers
• 6. Pavement Analysis & Design, Yang H. Huang, Prentice Hall Inc.
• 7. Pavement and Surfacing for Highway & Airports, Micheal Sargious, Applied Science Publishers Limited.
• 8. IRC: 37 & 58 Codes for Flexible and Rigid Pavements Design. R19 M.TECH GEOTECHNICAL ENGG. M.TECH.- II YEAR- I SEMESTER GEOTECHNICAL ENGINEERING