Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 2 (Q.No. 19)
19.
ISI has specified full strength of concrete after
Discussion:
54 comments Page 4 of 6.
Pramod said:
8 years ago
Isi means?
Hardz said:
8 years ago
It's right Concrete take 3 years to gain full strength but IS suggested to take strength at 28 days as standard.
Ali said:
8 years ago
The Correct Answer is 28 days.
Akhilesh said:
8 years ago
The correct option is 28 days.
Shirin shaikh said:
8 years ago
It should be 28 days.
Jack said:
9 years ago
According to IS 456:2000, Page 16 NOTES, " In the designation of concrete mix M refer to the mix and the number to the specified compressive strength of 150 mm size cube at 28 days, expressed in N/mm2.
i.e. ISI has specified the full strength of concrete after 28days.
i.e. ISI has specified the full strength of concrete after 28days.
AJEET KUMAR said:
9 years ago
As per IS 456 the concrete gains 99% strength in 28 days not 100%.
Ravi Bhalerao said:
9 years ago
As per IS 456 the concrete gains it's full strength 100% in 28 days.
Piyush said:
9 years ago
By theoretical the answer is 28 days and by practically in 28 days 98% strength is achieved.
Adeel abdullah said:
9 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.
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