Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 6 (Q.No. 35)
35.
Pick up the compound responsible for early strength of cement from the following:
Tetra-calcium alumino-ferrite
Tricalcium silicate
Tricalcium aluminate
Dicalcium silicate.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 1 of 2.

Haji baba said:   3 years ago
C3S - Early strength, rapid hardening, more heat.

C3A - Initial setting time, Quickest to react with water.
(3)

R Sathish Kumar said:   5 years ago
Option B is Correct.

C3S - Early strength.
C2S - Strength lateral.
C3A - Setting time.

J J Radadiya said:   6 years ago
C3A is the right answer.

Deepak Baswal said:   7 years ago
Question is about strength, not for setting time.

So, the Answer is correct B.
(2)

Ruchir said:   7 years ago
Tricalcium Silicate (C3S) hardens rapidly and is largely responsible for initial set and early strength. In general, the early strength of Portland cement concrete is higher with increased percentages of C3S. Dicalcium Silicate (C2S) hardens slowly and contributes largely to strength increases at ages beyond 7 days.

Abhi said:   7 years ago
C3S is the right answer.

Dale mayur said:   7 years ago
Tricalcium aluminate is the correct answer.
(1)

Satish Verma said:   7 years ago
It is tri-calcium aluminate.

Saurabh kumar said:   8 years ago
It is Tri- calcium aluminate.

Amit ami sharma said:   9 years ago
Initial setting is responsible by aluminate as it first compounds to react but early strength is provided by tricalcium silicate and ultimate strength is by dicalcium silicate.
(1)


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