Download GTU BE/B.Tech 2018 Winter 8th Sem Old 180607 Repairs And Rehabilitation Of Structures Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER-VIII (OLD) EXAMINATION — WINTER 2018

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Subject Code: 180607 Date: 29/11/2018

Subject Name: Repairs & Rehabilitation Of Structures

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. (a) Explain need of concrete cover in R.C.C. structure. Give IS 456:2000 recommendations for nominal cover (07)
2. (b) Classify the Repair materials based on types of application. (07)

1. (a) List out various non destructive Test. Explain rebound hammer Test. (07)

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2. (b) What are the factors affect on durability? Explain in detail. (07)

OR

1. (a) Write short note on Foundation Rehabilitation Methods. (07)
2. (b) Explain Gunite and Shotcrete as method of repair. (07)

1. (a) How do you evaluate repairs, and rehabilitate a structure distressed due to fire and marine exposure? (07)

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OR

1. (a) Give the difference between retrofitting and rehabilitation of structure. (07)
2. (b) Explain column jacketing with neat sketch (07)

1. (a) Explain sulphate attack on concrete. (07)
2. (b) Explain briefly cracking of concrete and remedial measures for prevention of cracking. (07)

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OR

1. (a) Describe in brief the various methods / technique of demolition. (07)
2. (b) Enlist and explain long term Health-monitoring techniques. (07)

1. (a) Explain the precautions to be taken during demolition of structure. (07)
2. (b) Write short note on fiber reinforced concrete. (07)

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OR

1. (a) How the corrosion starts in reinforced concrete structures? Give various preventive measures. (07)
2. (b) Write a short note on Vacuum Concrete and Visual observations to assess fire damaged structure. (07)