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Posted By: Saranya Member Level: Diamond Posted Date: 23 May 2008
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2007 Annamalai University Diploma Damage Assessment, Repair & Rehabilitation DETERIORATION PROCESS IN REINFORCED CONCRETE Question paper
Register Number: 5437
Name of the Candidate:
DIPLOMA EXAMINATION, 2007
(DAMAGE ASSESSMENT, REPAIR AND REHABILITATION OF STRUCTURES)
(PAPER-I)
110. DETERIORATION PROCESS IN REINFORCED CONCRETE
Dec.) (Time: 3 Hours
Maximum: 100 Marks
Answer any ALL questions
All questions carry equal marks
1. a) Explain drying shrinkage of concrete. (20)
(OR)
b) Describe how erosion and cavitation can damage concrete structures. (20)
2. a) Describe the mechanism of corrosion of steel in concrete and the factors influencing it. (20)
(OR)
b) Explain the functions of protective coatings for concrete surface. (20)
3. a) Explain how concrete is damaged by sulphate attack and how it is controlled? (20)
(OR)
b) Write short notes on
i) Attack of soft water on concrete. (10)
ii) Biological attack on concrete. (10)
4. a) Explain how damage affects the concrete structures. (20)
(OR)
b) Describe the influence of the following actions on the performance of RC structures.
i) Vibration
ii) Improper placement of reinforcement (20)
5. a) Explain pop outs and crazing in concrete. (20)
(OR)
b) Describe in detail the scaling and spalling of concrete. (20)
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