Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem Old 180607 Repairs And Rehabilitation Of Structures Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (Old) EXAMINATION ? WINTER 2019
Subject Code: 180607 Date: 29/11/2019
Subject Name: Repairs & Rehabilitation Of Structures
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Differentiate between micro-crack & macro-crack. Explain the
mechanism of micro-cracking due to differential thermal exposure
in structures.
07
(b) Make a list of various construction and design deficiencies in
structures. Explain the consequences of any two in detail.
07
Q.2 (a) Define Condition assessment of structures. Explain its objectives. 07
(b) Define Durability of Concrete. Enlist factors affecting durability
in concrete structures.
07
OR
(b) What are the major causes of deterioration in Concrete structures?
Explain the chemical deterioration due to Alkali aggregate reaction
and Carbonation of concrete.
07
Q.3 (a) Write requirements as per IS:456 for durability of concrete
structures.
07
(b) What is the importance of the field and laboratory testing for
damage assessment of the Structure?
07
OR
Q.3 (a) Mention the essential requirements of a repair material. 07
(b) Explain briefly: (a) Foamed Concrete (b) Fiber Reinforced
concrete (c) Polymer latex concrete.
07
Q.4 (a) Describe in detail the different techniques you will apply to repair
or strengthen a distressed RCC slab.
07
(b) Enlist the various demolition techniques and explain few in detail. 07
OR
Q.4 (a) What is meant by Jacketing? Discuss repair and strengthening of
columns by jacketing.
07
Q.4 (b) Write short note on Foundation Rehabilitation Methods 07
Q.5 (a) Explain the crack repair by Routing and Sealing. 07
(b) Explain the process of corrosion in Reinforced concrete structures.
Mention the methods for corrosion protection.
07
OR
Q.5 Differentiate between the following ( Any seven)
1. Repair & Rehabilitation
2. Active crack and Passive crack
3. Structural vs Non-structural crack
4. Design error & Construction error
5. Durability and Serviceability
6. Porosity & Permeability
14
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (Old) EXAMINATION ? WINTER 2019
Subject Code: 180607 Date: 29/11/2019
Subject Name: Repairs & Rehabilitation Of Structures
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Differentiate between micro-crack & macro-crack. Explain the
mechanism of micro-cracking due to differential thermal exposure
in structures.
07
(b) Make a list of various construction and design deficiencies in
structures. Explain the consequences of any two in detail.
07
Q.2 (a) Define Condition assessment of structures. Explain its objectives. 07
(b) Define Durability of Concrete. Enlist factors affecting durability
in concrete structures.
07
OR
(b) What are the major causes of deterioration in Concrete structures?
Explain the chemical deterioration due to Alkali aggregate reaction
and Carbonation of concrete.
07
Q.3 (a) Write requirements as per IS:456 for durability of concrete
structures.
07
(b) What is the importance of the field and laboratory testing for
damage assessment of the Structure?
07
OR
Q.3 (a) Mention the essential requirements of a repair material. 07
(b) Explain briefly: (a) Foamed Concrete (b) Fiber Reinforced
concrete (c) Polymer latex concrete.
07
Q.4 (a) Describe in detail the different techniques you will apply to repair
or strengthen a distressed RCC slab.
07
(b) Enlist the various demolition techniques and explain few in detail. 07
OR
Q.4 (a) What is meant by Jacketing? Discuss repair and strengthening of
columns by jacketing.
07
Q.4 (b) Write short note on Foundation Rehabilitation Methods 07
Q.5 (a) Explain the crack repair by Routing and Sealing. 07
(b) Explain the process of corrosion in Reinforced concrete structures.
Mention the methods for corrosion protection.
07
OR
Q.5 Differentiate between the following ( Any seven)
1. Repair & Rehabilitation
2. Active crack and Passive crack
3. Structural vs Non-structural crack
4. Design error & Construction error
5. Durability and Serviceability
6. Porosity & Permeability
14
2
7. Plastic Shrinkage & Drying shrinkage
8. Jacketing & Overlaying
9. Air voids & Capillary porosity
*************
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This post was last modified on 20 February 2020