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 2 of 5.

Vivek Thakur said:   8 years ago
W/c ratio is 0.5 -0.7 acc to code.
35/50= 0.7.

Jayrajsinh Parmar said:   7 years ago
Cement 500= 0.35 m3 (50 kg cement =0.035 m3 cement)

Water Req for cement 38 %
= 0.35 * 38/woo
= 0.133 m3 Water

From Water Density.
1000 kg/m3 = (kg/0.133 m3)

Water = 133 kg.

Aesthetic said:   7 years ago
Simple, the unit should be in litres not kg so the answer is correct, only it should be in litres.

Nikhil Dev said:   7 years ago
The maximum quantity of water = 65% of the weight of cement.
i.e 65/100*50 = 32 litre.

Hence, 32 litre is the correct answer.

Ravi sharma said:   7 years ago
How much water required for one bag cement in ratio 1: 3 :6?

Talib said:   7 years ago
Water required for one bag of cement is 22.5lts and one bag of cement is equal to 35lts.

Sami ullah said:   7 years ago
For a general purpose, w/c ratio is .45.

So, water required for 1 bag of cement (=50kg) is 22.5 ltrs.

Azeem said:   6 years ago
As per ACI, Minimum percentage of water for hydration of cement is 0.4.

50 x 0.4 = 20 kg.

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

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%.


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