Civil Engineering - Structural Design Specifications - Discussion

Discussion Forum : Structural Design Specifications - Section 1 (Q.No. 34)
34.
The ratio of minimum compressive strength on 15 cm cubes prepared with the concrete of M 20 grade and M 40 grade, at 7 days should be at least
1/3
1/2
3/2
2.0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Kishan Singh said:   8 years ago
Yes, absolutely Right @Krishna.

Krishna said:   9 years ago
At 7 days 65% strength expected.

65% 20/ 65% 40 = 1/2.
(1)

Ganesh said:   10 years ago
Can any one describe?
(2)

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