Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 3 (Q.No. 45)
45.
If water required for 1 bag of cement is 30 litres, the water cement ratio is :
Discussion:
39 comments Page 1 of 4.
Amit Bhandari said:
7 years ago
Since Water cement ratio = weight of water/weight of cement.
(Note: the unit of weight is kg and unit of volume is lit)
The weight of 1 bag (vol -35 lit or 0.035 CuM) of cement is= 50kg.
The weight of 30 lit of water = 30 kg (since the density of water is 1kg/lit).
Therefore, W/C ratio = 30 kg(weight)/50 kg (weight) = 0.6 (Answer).
Option 'C' is the right answer!
(Note: the unit of weight is kg and unit of volume is lit)
The weight of 1 bag (vol -35 lit or 0.035 CuM) of cement is= 50kg.
The weight of 30 lit of water = 30 kg (since the density of water is 1kg/lit).
Therefore, W/C ratio = 30 kg(weight)/50 kg (weight) = 0.6 (Answer).
Option 'C' is the right answer!
Mudasir said:
9 years ago
Can anybody will confirm me what is the correct answer. 0.6 or 0.86?
I read book, some are saying water cement ratio is measure of wt of water/ wt of cement, and some are saying wt of cement/ volume of cement.
So, if anybody knows please post it.
I read book, some are saying water cement ratio is measure of wt of water/ wt of cement, and some are saying wt of cement/ volume of cement.
So, if anybody knows please post it.
Abhiraj said:
9 years ago
Hi, The Correct answers is 0.6.
Water cement ratio = weight of water/ weight of cement.
The weight of 1-litre water is 1 kg.
So, 30 liter = 30 kg.
Weight of 1 bag cement (volume = 35 liter) is 50kg.
Therefore, W/c ratio = 30/50 = 0.6.
Water cement ratio = weight of water/ weight of cement.
The weight of 1-litre water is 1 kg.
So, 30 liter = 30 kg.
Weight of 1 bag cement (volume = 35 liter) is 50kg.
Therefore, W/c ratio = 30/50 = 0.6.
Samadhan Chaudhari said:
9 years ago
Guys, 35 ltr is the volume of 1 bag of cement.
The water cement ratio is calculated by considering the weight of both materials.
So the weight of 1 cement bag is 50kg.
And weight of water is 30 litre equal to 30kg.
Ratio will be 30/50 = 0.6
The water cement ratio is calculated by considering the weight of both materials.
So the weight of 1 cement bag is 50kg.
And weight of water is 30 litre equal to 30kg.
Ratio will be 30/50 = 0.6
Deepak said:
7 years ago
The density of water is 1000kg/m^3.
And 1 m^3 equals to 1000 litres.
1 litre of pure water has a weight of 1 kg.
We know that the density of pure water is 1000 k g/m 3.
It means 1 cubic meter of pure water has a weight of 1000 kg.
And 1 m^3 equals to 1000 litres.
1 litre of pure water has a weight of 1 kg.
We know that the density of pure water is 1000 k g/m 3.
It means 1 cubic meter of pure water has a weight of 1000 kg.
Shanker Lal Meghwar said:
1 decade ago
Volume of 1 bag of cement = 50 Kg or 35 liters.
Given amount of water is in liters i.e. 30 liters.
For finding W/C ratio units must be homogeneous.
Therefore:
W/C = 30/35 = 0.86.
So, option "D" is correct.
Given amount of water is in liters i.e. 30 liters.
For finding W/C ratio units must be homogeneous.
Therefore:
W/C = 30/35 = 0.86.
So, option "D" is correct.
Deva Aj said:
10 years ago
Both the materials should be considered in same units.
Therefore, volume of 1 bag of cement in liters is = 35.
W/C = 30/35 (in liters).
= 0.86.
Option "D" is the correct answer.
Therefore, volume of 1 bag of cement in liters is = 35.
W/C = 30/35 (in liters).
= 0.86.
Option "D" is the correct answer.
Arvind Singh Rawat said:
6 years ago
Density of water =1000kg/m3.
volume of water = 30 litres = 30/1000 m3.
weight of water = 1000 x 30 /1000 = 30kg.
W/C ratio = 30/50 = 0.6
So, option C is correct.
volume of water = 30 litres = 30/1000 m3.
weight of water = 1000 x 30 /1000 = 30kg.
W/C ratio = 30/50 = 0.6
So, option C is correct.
(2)
Vikas said:
8 years ago
Since, the density of water =1kg/L.
(W/C) the ratio is taken in weight not in volume.
Wt of 30L of water = 30 kg.
And, w/c =30/50=0.6.
So, C is correct.
(W/C) the ratio is taken in weight not in volume.
Wt of 30L of water = 30 kg.
And, w/c =30/50=0.6.
So, C is correct.
Govardhan said:
7 years ago
Here ask only water-cement ratio but you have said density of 1bag of cement so, water cement ratio of 1bag cement is 0.60,
1bag=50kg,
50/30=0.60.
1bag=50kg,
50/30=0.60.
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