Chapter Questions
What is cement concrete? Explain the function of each ingradient and state common proportions of the ingradients used for different works.
What do you understand by batching of concrete? Briefly explain different methods of batching.
Explain different methods of mixing aggregates.
Why concrete should be compacted after placing? Explain different methods of compaction. Bring out their advantages and disadvantages.
What is meant by curing of concrete? Why it is necessary and how it is made?
Write short notes on(a) Workability of concrete(b) Segregation of concrete and(c) Bleeding of concrete.
Write short note on water cement ratio.
What do you understand by $\mathrm{M}_{20}$ concrete? How this grade is determined?
Explain the various causes for dimensional changes in the hardened concrete.
Write short notes on the following tests on concrete:(a) Slump test(b) Compaction factor test(c) Crushing strength test.
What are the desired properties of concrete?
List the various works where concrete is used.
What is R.C.C.? Briefly write on desirable properties and uses of concrete.
Write short notes on(a) Reinforced brick concrete(b) Prestressed concrete(c) Fibre reinforced concrete(d) Cellular concrete and(e) Ferro-cement.