Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 1 (Q.No. 39)
39.
The high strength of rapid hardening cement at early stage, is due to its
Discussion:
57 comments Page 4 of 6.
Abhishek choudhary said:
9 years ago
I think option A is correct.
Anil Choudhary said:
1 decade ago
The rapid rate of developing of strength in RHC is attributed to.
1. Higher fineness of grinding.
2. Higher content of tricalcium (C3S) and lower content of dicalcium (C2S).
So A and D is the right answer!
1. Higher fineness of grinding.
2. Higher content of tricalcium (C3S) and lower content of dicalcium (C2S).
So A and D is the right answer!
Nikhil tank said:
1 decade ago
Contains more tri-calcium silicate (C3S) and finely ground.
Shankar Khanal said:
1 decade ago
As we increase the lime content, the amount of C3S increases. Hence the option C is correct.
Rajendran p said:
1 decade ago
Dear sir,
The early strength of RHC is achieved by the cement is grinding finer than the OPC. So surface area of cement will more and the finer cement will quick action with water and getting early strength. If adding more cement, cement will unsound.
The early strength of RHC is achieved by the cement is grinding finer than the OPC. So surface area of cement will more and the finer cement will quick action with water and getting early strength. If adding more cement, cement will unsound.
Mike said:
1 decade ago
RHC develops the strength rapidly at the age of 3 days, the same at that expected in opc in 7 days. The rapid rate development of strength is due to higher fine grinding and higher of C3S and lower of C2S, but I don't know how the answer is justified to Increase in lime content.
Dimpi said:
1 decade ago
First queries. What is lime cement? I am not aware about that kind of cement.
And answer should be fine grading or TriCalcium Silicate. But in question mentioned only "tricalcium".
Please give correct answer.
And answer should be fine grading or TriCalcium Silicate. But in question mentioned only "tricalcium".
Please give correct answer.
Galelio said:
1 decade ago
@Anil Choudhary you are right.
Rapid hardening cement have increase fineness & c3s content.
Rapid hardening cement have increase fineness & c3s content.
Smily said:
1 decade ago
Increase in lime content will increase the strength and hardening.
DARSHAN H A said:
1 decade ago
Clearly given in books. The answer is both A and D.
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