Hall Ticket No Question Paper Code: BST214
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech II Semester End Examinations (Supplementary) January, 2018
Regulation: IARE-R16
REHABILITATION AND RETROFITTING OF STRUCTURES
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Explain the importance of rehabilitation of structures.
Discuss the various precautions to be taken during construction to avoid deterioration of concrete.

2. Write a short notes on Repair and Renovation.
Explain in detail about Restoration, Rehabilitation and Retrofitting.
UNIT II
3. List out different ways of controlling the corrosion of steel in concrete. Explain any two methods
in detail.
What are the various types of damages occur in concrete and suggest the mechanisms for damage
control.
4. Discuss the cracking of hardened concrete? Explain various factors effecting hardened concrete.

What are the various steps to be taken to improve the quality of concrete both in fresh and
hardened states.
UNIT III
5. Explain PUNDIT test conducted on concrete.
Explain the tests done to assess corrosion of reinforcement.
6. What are the factors that affect the rebound reading in rebound hammer testing? Explain briefly.

Explain the need for evaluation of structures?
UNIT IV
7. What are the criteria for selection of repair materials and what factors have to be considered in
selecting repair materials?
What is jacketing? What are the different types of jacketing?
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8. What is shotcreting? What are its advantages and disadvantages?
Explain jacketing methods used in rehabilitation of structures.
UNIT V
9. Write a short note on Building Instrumentation.
Explain the use of smart sensors for monitoring infrastructures.
10. Discuss in detail different types of sensors and its applications.
Explain the active structural health monitoring of structures.