Short Questions
1(a)
Which test is used to measure the durability of cement?
1 M
1(b)
What is the effect of coarseness of aggregate on the water demand?
1 M
1(c)
Define Creep of Concrete.
1 M
1(d)
What is difference between air entrained and air entrapped?
1 M
1(e)
What is leaching?
1 M
1(f)
Give the value of initial and final setting time of cement.
1 M
1(g)
What is the use of Super plasticizer in Concrete?
1 M
1(h)
Define Standard Consistency of cement.
1 M
1(i)
Which type of aggregates are preferred gap graded or uniformly graded? Why?
1 M
1(j)
In a slump test of fresh concrete, if shear slump is observed, what does it indicates?
1 M
1(k)
What should be the value of flakiness and elongation index of aggregate to be used in Structural Concrete?
1 M
1(l)
Fine aggregate used in the production of concrete should be of which Zone? Why?
1 M
1(m)
Define Carbonation of concrete.
1 M
1(n)
Which strength of concrete is measured by testing Beam?
1 M
2(a)
How fly ash concrete gain strength in later age? Explain Mechanism.
3 M
2(b)
Give the Bogue's Compound for Cement. And explain their role in hydration process.
4 M
Solve any one question from Q.2(c) & Q.2(d)
2(c)
Explain wet process for manufacturing of cement.
7 M
2(d)
Compared to other materials, what are the advantages of using concrete for structures?
7 M
Solve any three question from Q.3(a), Q.3(b), Q.3(c) & Q.3(d), Q.3(e), Q.3(f)
3(a)
Explain the effect of water cement ratio on the strength of Concrete? Explain Mechanism.
3 M
3(b)
Explain Segregations of concrete in detail.
4 M
3(c)
What is durability of concrete? Enlist factors affecting durability of concrete. Explain any one in detail.
7 M
3(d)
What is shrinkage? Give the classification of shrinkage.
3 M
3(e)
Explain Bleeding in detail.
4 M
3(f)
What is permeability of concrete? Enlist factors affecting permeability of concrete. Explain any one in detail.
7 M
Solve any three question from Q.4(a), Q.4(b), Q.4(c) & Q.4(d), Q.4(e), Q.4(f)
4(a)
Describe the importance of the quality of water used for concrete.
3 M
4(b)
Give the Limitation of Rebound hammer test.
4 M
4(c)
Write short note Alkali aggregate reaction.
7 M
4(d)
Explain bulking of aggregate.
3 M
4(e)
Give the factors affecting the measurement of Ultrasonic pulse velocity test.
4 M
4(f)
Enlist different tests for hardened concrete. Explain Split cylinder test.
7 M
Solve any three question from Q.5(a), Q.5(b), Q.5(c) & Q.5(d), Q.5(e), Q.5(f)
5(a)
Enlist factors affecting properties of fibre reinforced concrete.
3 M
5(b)
Explain the effect of cold weather on concrete.
4 M
5(c)
Explain Indian Standard Mix design method as per IS:10262:2009 with its salient
features.
7 M
5(d)
Explain mechanism of sulphate attack on concrete.
3 M
5(e)
Which are the basic requirements or property of the Self compacting concrete? Enlist various tests for measurement of each property.
4 M
5(f)
Explain principle of mix design. Explain parameters and factors influencing mix design.
7 M
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