Civil Engineering - Structural Design Specifications - Discussion

35. 

The minimum compressive strength on 15 cm cubes of M 30 grade concrete at 7 days, should be a minimum of

[A]. 7 N/mm2
[B]. 10 N/mm2
[C]. 20 N/mm2
[D]. 30 N/mm2

Answer: Option C

Explanation:

No answer description available for this question.

Pankaj Teware said: (Mar 18, 2014)  
7 days strength is = (2/3)*Fck.

Rohit said: (Mar 15, 2018)  
At 7 day minin compressive strength is 65%.

So 30*65/100=19.50.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.