Which of the following statements is / are correct for limes used in construction? i. Hydraulic lime is used for structural purpose ii. Fat lime is used for white washing and plastering and composite mortars (with pozzolanic material) iii. Siliceous dolomitic lime is used for under coat and finishing coats of plasters
- AOnly (i)
- B(i) and (ii)
- C(ii) and (iii)
- D(i), (ii) and (iii)Correct
Solution
Concept
Types and uses of lime
Step-by-step solution
1. Hydraulic lime sets under water and suits structural masonry. 2. Fat lime is used for whitewashing, plastering and with pozzolana. 3. Siliceous dolomitic lime is used for plaster coats.
Explanation
All three statements describe accepted uses.
Why the other options are wrong
Other options omit a valid use.
Shortcut
All three.
Correct answer: D) (i), (ii) and (iii)