Which of the following statements is correct for Ferrocement water tanks? i. In India, Ferrocement water tanks are permitted for a capacity up to 10,000 litres only ii. The recommended mix design is one-part cement and 1.5 to 2.5 part of sand by mass with w/c ratio of 0.35-0.45 iii. Minimum percentage reinforcement in two principal directions is not less than 1 percent with minimum clear cover is 4 mm
- AOnly (i)
- B(i) and (ii)
- C(ii) and (iii)
- D(i), (ii) and (iii)Correct
Solution
Concept
Ferrocement water tanks (IS 7783)
Step-by-step solution
1. Capacity limit 10,000 L (statement i). 2. Mix 1 : 1.5–2.5 with w/c 0.35–0.45 (ii). 3. Reinforcement ≥ 1% in both directions with 4 mm cover (iii).
Explanation
All three statements match the code requirements for ferrocement tanks.
Correct answer: D) (i), (ii) and (iii)