Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 2 (Q.No. 38)
38.
For an ordinary Portland cement
residual does not exceed 10% when sieved through IS Sieve No. 9
soundness varies from 5 to 10 mm
initial setting time is not less than 30 minutes
compressive stress after 7 days, is not less than 175 kg/cm2
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
26 comments Page 2 of 3.

Hiren said:   8 years ago
Definitely E is the correct answer.

Raja said:   8 years ago
Definitely E is correct answer.

ER. Ravi said:   8 years ago
Answer E is correct, I think.

Karn kumar said:   8 years ago
E is right. I agree.

Anup said:   7 years ago
Option E is right. I also agree.

VIVEK SINGH said:   7 years ago
What should be a maximum initial setting time of OPC?

Hardik chauhan said:   7 years ago
I agree with option C, as it says that "initial setting time is not less than 30minutes" that means it should be more than 30mnts, not less than 30. But we all know the Initial setting time of OPC is exactly 30 minutes, not more not less.

PARTHA said:   6 years ago
According to MS Shetty, initial is not less than 30 and final not more than 10h.

Subu said:   6 years ago
Those who agree with option E, they also agree that option C is correct for OPC, but those who are saying option C is correct they are not defining why option E is incorrect. As A, B, C, D all are the necessary criteria for OPC.

Pallab said:   6 years ago
It would be option (E). I too agree


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