Question

For a normal RCC work, the slump of concrete should be in the range of
1. 0 - 25 mm
2. 25 – 50 mm
3. 80 – 150 mm
4. 50 – 125 mm

Answer 1

Correct Answer - Option 3 : 80 – 150 mm

Explanation

Workability of Concrete:

The concrete mix proportions chosen should be such that the concrete is of adequate workability for the placing conditions of the concrete and can properly be compacted with the means available.

For concrete work, low workable concrete is preferred.

Normal RCC work = (80 – 150) mm

Mass concrete = (20 – 50) mm

Columns and slabs = (40 – 50) mm