Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 2 (Q.No. 19)
19.
ISI has specified full strength of concrete after
7 days
14 days
21 days
28 days
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
55 comments Page 3 of 6.

Er.S.Kesavan said:   8 years ago
28 days is the correct answer.

Jaspreet said:   8 years ago
The full strength of concrete is getul upto 98% after 1 year and at 28 days 70% approximately.

Anitha said:   1 month ago
As per BIS earlier ISI, the concrete attain its strength after 28days.

Sreerench said:   6 years ago
28 days is correct.

Shivaa said:   5 years ago
Explain the right answer.

Dagne said:   3 years ago
It Depends on the hydration process of the concrete.

Nasim said:   3 years ago
ASTM standards Usually we specify the 28-day strength, that is, the compressive strength after 28 days' moist cure at 73 ˚F.

Toshik chandrawanshi said:   1 decade ago
ISI doesn't specified any strength. That is the IS 456 which specified the strength of concrete.

Adeel abdullah said:   10 years ago
Concrete gains its ultimate or full strength within 2 to 3 years so this option is not given that ways, So the answer is none of these.

Arpan said:   1 decade ago
I know that in 28 days 98% strength developed according to IS 456-2000.


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