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 1 of 6.

B.Singh said:   3 years ago
95 - 98 % concrete strength is 28 days.

The full strength of concrete is 3 years.

Because the hydration process of concrete 100 % will be 1 year.
(9)

Rajendra kumar said:   4 years ago
Days -- Concrete Percentage.

1 -- 16%.
3 -- 45%.
7 -- 65%.
14 -- 90%.
28 -- 99%.
(3)

Tejas pawade said:   5 years ago
1 -----> 16%.
3 ------> 45%.
7 -----> 65%.
14 ----> 90%.
28 ------> 99%.
(3)

Khan said:   5 years ago
28days is the correct answer.
(2)

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

Er. Amit kumar said:   8 years ago
As per Is 456 concrete gain 99.99% full strength in 28 days.
(1)

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

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)

The beast said:   5 years ago
Concrete never get its full strength.
(1)

Karunakar Murmu said:   4 years ago
Agree @Mahendrasinh.

It should be 1 year.
(1)


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