Concrete Technology — Winter 2022

Explain segregation and bleeding of concrete.

Explain volume batching and weigh batching for concrete mix.

Write down the factors affecting the strength of concrete & explain any three in detail.

Write chemical composition of Ordinary Portland cement.

Define the term “Bulking of fine aggregates”. Explain its significance for in relation to strength of concrete.

Explain the Alkali-aggregate reaction.

List factors affecting the permeability of concrete. Explain any three of them in detail.

What do you understand by compaction of concrete? Explain “Why compaction is needed?”

Write short note on cold weather concreting.

Define durability of concrete? Enlist factors affecting durability of concrete. Explain any three in brief.

What is the role of fly ash in cement industry.

How can we check cement on site? Why the field testing of cement is important?

Enlist various Non-Destructive tests for assessment of strength of concrete. Explain Rebound Hammer test.

Explain in brief about freezing and thawing effect of concrete.

Describe the effect of size, shape, texture and grading on concrete.

Explain wet process for manufacturing of cement.

Describe the effect of quantity of Gypsum in cement.

Explain different types of slump with appropriate figure.

Describe shrinkage of concrete. Giving the classification of shrinkage, explain harmful effects of shrinkage of concrete.

Briefly explain Gel-space ratio.

List various crack repair techniques and explain any one in detail.

Write importance of curing of concrete. Explain different methods of curing procedure.

Explain Impact and crushing value of aggregate.

Write a note on “Fiber reinforced concrete”.1

What do you mean by Design of concrete mix. Explain the steps for Mix Design Procedure as per relevant Indian Standards.