Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem New 2180607 Repairs And Rehabilitation Of Concrete Structures Previous Question Paper
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180607 Date: 25/11/2019
Subject Name: Repairs & Rehabilitation Of Concrete 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) Enlist the causes of distress in RCC buildings? 03
(b) Explain the importance of cover in RCC structures. 04
(c)
Discuss the methods to prevent corrosion of reinforcement in RCC
during design, construction and after construction.
07
Q.2 (a) Discuss the effect of sulphate attack on concrete. 03
(b) What are the main objectives of condition assessment of structures?
Explain in short various stages of condition assessment.
04
(c) Explain the term repair, rehabilitation and seismic retrofitting with
reference to RCC buildings.
07
OR
(c) What is carbonation? State and explain the factors affecting rate of
carbonation. Explain the method to test the depth of carbonation.
07
Q.3 (a) Explain injection grouting for RCC buildings. 03
(b) Describe the process of gunniting with reference to buildings. 04
(c) State in details the essential parameters of repair materials. 07
OR
Q.3 (a) Enlist various types of Non- Destructive Tests used to determine
strength of existing structures.
03
(b) Explain Rebound Hammer test and its limitations. 04
(c) What do you understand by jacketing? Explain jacketing of column
step by step along with sketches.
07
Q.4 (a) Explain the effect of freezing and thawing on concrete. 03
(b) What is shore? Enlist different types of shores. 04
(c) What do you mean by Structural Health Monitoring? What are the
methods for SHM of RCC structures?
07
OR
Q.4 (a) Explain factors affecting permeability of concrete. 03
(b) Enlist the design and construction errors which cause deterioration
of RCC structures in long run.
04
(c) Explain alkali aggregate reaction. State and explain factors
promoting and controlling alkali aggregate reaction.
07
Q.5 (a) Write short notes on Vacuum Concrete. 03
(b) Explain Polymer Concrete and its application. 04
(c) Explain crack development mechanism in RCC and various crack
repair techniques.
07
P T O????
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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180607 Date: 25/11/2019
Subject Name: Repairs & Rehabilitation Of Concrete 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) Enlist the causes of distress in RCC buildings? 03
(b) Explain the importance of cover in RCC structures. 04
(c)
Discuss the methods to prevent corrosion of reinforcement in RCC
during design, construction and after construction.
07
Q.2 (a) Discuss the effect of sulphate attack on concrete. 03
(b) What are the main objectives of condition assessment of structures?
Explain in short various stages of condition assessment.
04
(c) Explain the term repair, rehabilitation and seismic retrofitting with
reference to RCC buildings.
07
OR
(c) What is carbonation? State and explain the factors affecting rate of
carbonation. Explain the method to test the depth of carbonation.
07
Q.3 (a) Explain injection grouting for RCC buildings. 03
(b) Describe the process of gunniting with reference to buildings. 04
(c) State in details the essential parameters of repair materials. 07
OR
Q.3 (a) Enlist various types of Non- Destructive Tests used to determine
strength of existing structures.
03
(b) Explain Rebound Hammer test and its limitations. 04
(c) What do you understand by jacketing? Explain jacketing of column
step by step along with sketches.
07
Q.4 (a) Explain the effect of freezing and thawing on concrete. 03
(b) What is shore? Enlist different types of shores. 04
(c) What do you mean by Structural Health Monitoring? What are the
methods for SHM of RCC structures?
07
OR
Q.4 (a) Explain factors affecting permeability of concrete. 03
(b) Enlist the design and construction errors which cause deterioration
of RCC structures in long run.
04
(c) Explain alkali aggregate reaction. State and explain factors
promoting and controlling alkali aggregate reaction.
07
Q.5 (a) Write short notes on Vacuum Concrete. 03
(b) Explain Polymer Concrete and its application. 04
(c) Explain crack development mechanism in RCC and various crack
repair techniques.
07
P T O????
OR
Q.5 (a) Write short notes on Fiber Reinforced Concrete. 03
(b) Explain cathodic protection of steel in RCC. 04
(c) Explain importance of maintenance of RCC buildings. Discuss
common maintenance required for RCC buildings.
07
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This post was last modified on 20 February 2020