MU Civil Engineering (Semester 4)
Concrete Technology
May 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Explain in brief various methods of curing of concrete.
5 M
1 (b) Explain in brief any four properties of ordinary Portland cement.
5 M
1 (c) Explain in brief fineness modulus of course and fine aggregates.
5 M
1 (d) Define high performance and high strength concrete.
5 M
1 (e) What are the mineral admixtures? Explain in brief.
5 M

2 (a) Explain in detail various properties of hardened concrete.
10 M
2 (b) Explain in detail various factor affecting workability of concrete.
10 M

3 (a) Explain in detail manufacturing process of concrete in RMC plant.
10 M
3 (b) Explain step by step procedure to design concrete mix for compressive strength as per IS:10262.
10 M

4 (a) Enlist any five types of chemical admixtures commonly used and explain them in detail.
10 M
4 (b) What is NDT of concrete? Explain any one method of NDT with sketch in detail.
10 M

5 (a) Explain the effect of aggregate properties on concrete quality.
7 M
5 (b) Explain in detail Hot weather and cold weather concreting.
6 M
5 (c) What is durability of Concrete? Explain the effect of W/C Ratio on durability of concrete.
7 M

Write short notes on the following
6 (a) Roller compacted concrete.
4 M
6 (b) Distress in concrete structures.
4 M
6 (c) Ferrocement.
4 M
6 (d) Fibre reinforced concrete.
4 M
6 (e) Explain concept of retrofitting.
4 M



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