Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 2 (Q.No. 17)
17.
Water required per bag of cement, is
7 kg
14 kg
21 kg
28 kg
35 kg
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
45 comments Page 1 of 5.

Pamu said:   1 year ago
It's 22 - 25 litre.
(1)

Nasim said:   2 years ago
The normal range for the amount of water used to mix each 50 kg bag of cement is between 20 liters and 30 liters.

Adam said:   4 years ago
50kg bag required 20 litre of water.
(4)

Shree Dev Sah said:   5 years ago
Thanks all for explaining.

Srikumar said:   5 years ago
Minimum water cement ratio is 0.45.
with that 50kg(1bag) x 0.45= 22.5 is the correct answer.
(6)

Mohit kumar said:   5 years ago
In the process of hydration of OPC. What is the water requirement to complete the chemical reaction ?

Pavan@iiit nuzvid said:   6 years ago
Simple,

Vol of cement bag of 50 Kg = 0.035 m3.
And, per 1 m3 we need 1000Kg of water.
So, Water required = 1000*0.035 = 35 Kg.
Since there is no mention about w/c ratio.
(15)

Sham Chavan said:   6 years ago
1m^3 = 1000kg or 1000lit.
1m^3 = density of cement / weight of one bag.
1m^3 = 1440/50=28.8 bags.
28.8bags = 1000kg.
1bag = 1000/28.8 = 34.7~ 35kg or 35 lit.
So Answer is correct.
(9)

Gopinathan said:   6 years ago
Tri-calcium silicate requires 24% and Dicalcium silicate requires 21% (only weight of Cement)
Average of 23% of water by weight of cement is required for chemical reaction with portland cement compound.

15% by weight of cement is required to fill up gel- pores.
Total requirements of water is 23 + 15= 38%.

Sanjeev thappa said:   6 years ago
28.8kg is the correct answer.


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