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III Semester B.E. (Civil) Degree Examination, January 2013 (Y2K6 Scheme) CE-302 : BUILDING MATERIALS AND CONSTRUCTION Time : 3 Hours

Max. Marks : 100

Instruction : Answer five full questions, selecting at least two questions from each Part. PART – A 1. a) What are the qualities of a good building stone ? Discuss them.

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b) Briefly explain the laboratory tests that are usually carried out to determine the quality of stone.

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c) What is Quarrying ? Explain the methods of Quarrying.

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2. a) Explain briefly I.S. classification of common bricks.

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b) Briefly describe the working of Bull’s trench Kiln for the burning of bricks.

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c) Explain in detail the tests to be conducted on brick.

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3. a) Explain the flow chart manufacture of cement by wet process.

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b) Explain in detail the tests conducted on cement in laboratory.

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4. a) What is bulking sand ? How it effects the volumetric proportioning of sand in mortar or concrete ?

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b) What are the properties of cement concrete ?

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c) What is meant by seasoning of timber ? What are its objects ?

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PART – B 5. a) What do you mean by the term foundation ? What is the purpose of providing foundations ? 10 b) Describe with the help of sketch the method of ascertaining bearing capacity of soil. 10 P.T.O.

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6. a) Explain the difference between brick masonry and stone masonry with reference to their suitability, cost and method of construction. 10 b) List the various types of bonds used in brick work. Draw the plan of 1½ brick thick in English bond both stretcher course and Header Course. 10 7. a) What are the requirements of good stairs ? Explain the different types of stairs.

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b) What factors should be considered while selecting a roof covering ? Explain the roof coverings which are commonly used. 10 8. a) What are the factors which affect the choice of flooring materials ? Explain in detail. 10 b) Explain with neat sketch the construction of flush door. ———————

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