Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 3 (Q.No. 49)
49.
To hydrate 500kg of cement full water needed, is
100 kg
110 kg
120 kg
130 kg
140 kg
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
31 comments Page 2 of 4.

Soumya choudhury said:   1 decade ago
Actually it is 25% of corresponding water of cement.

So 500*0.25 = 125 kg. But according to option given answer will be 130 kg.

Lund chut said:   6 years ago
@ Rahul Rana.


For hydration, it needs 23 per cent for hydration and 15 per cent for filling gel space.
(2)

Lund chut said:   6 years ago
@Rahul Rana.

For hydration, it needs 23 per cent for hydration and 15 per cent for filling gel space.
(3)

Soumya said:   6 years ago
For hydration of cement 23% of water is required.

So, for 500 kg cement, the answer should be 115kg.

Amar Deep Tiwari said:   1 decade ago
% wt of water required for full hydration is 26% by wt of cement.

i.e., 26*500/100 = 130 kg.

Gurjant Singh sawna said:   6 years ago
For complete hydration, 38% water is needed.

So 500*38/100 = 190 then how the answer is 130?

Aravind gottumukkala said:   1 decade ago
% wt of water required for full hydration is 38% by wt of cement.

i.e., 38*150/100 = 57 kg.

Vijay said:   9 years ago
23+15=bound water +gel water = full hydration=0.38.
So w/c=0.38=w/500 so w=500 * 0.38=190.

Sudhansu bhagat said:   1 decade ago
24%for Hydration of cement + 15% Jel of water.

So 24 * 500 :- 120liter.

Apcivilian said:   10 years ago
For chemical reaction 23% water needed.
For complete reaction it is 38%.
(1)


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