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:
54 comments Page 2 of 6.

Sreerench said:   5 years ago
28 days is correct.

Hayat said:   6 years ago
When full strength get 90% in 28 day, then for 100% (maximum strength) of concrete required 3 years, why?
(1)

Brahir said:   6 years ago
Maximum 100% strength to 3 years.
And
IS code 28-day full strength.
The answer is 3 year.

Dipnayna said:   6 years ago
I.S.I has specified the full strength of concrete after 28 days.
(1)

Rakesh said:   7 years ago
7days --> 65%,
14days--> 90%,
28 days--> 98%(maximum can be used for calculation).
(1)

Jaspreet said:   7 years ago
The full strength of concrete is getul upto 98% after 1 year and at 28 days 70% approximately.

Er.S.Kesavan said:   7 years ago
28 days is the correct answer.

KuldeeP said:   7 years ago
Normally 28 days is correct.

Anmol said:   7 years ago
After 28 days, concrete attains 75% of the ultimate strength of 1 year. And it takes 3 years to attain 100% strength.

Bharat bhardwaj said:   7 years ago
The Correct answer is 28 days.


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