Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 1 (Q.No. 2)
2.
If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
Discussion:
95 comments Page 1 of 10.
Farid Khan said:
6 years ago
If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
According to the question.
Cement paste=1875.
Water=1500.
Cement =1875-1500=375.
Now if we want to know the percentage of cement then=(wt of cement/wt of water) *100
=375/1500*100=25%.
And if want to know the percentage of water then =wt of water/wt of cement *100
=1500/375*100 = 400%.
According to the question.
Cement paste=1875.
Water=1500.
Cement =1875-1500=375.
Now if we want to know the percentage of cement then=(wt of cement/wt of water) *100
=375/1500*100=25%.
And if want to know the percentage of water then =wt of water/wt of cement *100
=1500/375*100 = 400%.
(1)
Farouq algradi said:
2 years ago
I think.
The water-cement ratio is the ratio of The volume of water and the volume of cement.
So the volume of 1500 grams of water is 1500 cubic centimetres, the volume of 1875Gram of cement, where the density of cement is 3. 2 grams per cm3, the volume of cement=3. 2*1875=6000Cubic centimeters, so the water-cement ratio = volume of water/volume of cement = 1500/6000 * 100 = 25%.
The water-cement ratio is the ratio of The volume of water and the volume of cement.
So the volume of 1500 grams of water is 1500 cubic centimetres, the volume of 1875Gram of cement, where the density of cement is 3. 2 grams per cm3, the volume of cement=3. 2*1875=6000Cubic centimeters, so the water-cement ratio = volume of water/volume of cement = 1500/6000 * 100 = 25%.
(8)
Prof. P. Rajayogan said:
1 decade ago
Percentage of water = (wt.of water/wt.of cement)100.
Question should be revised as follows
If 375 ml or g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
Wt.of water = 375 g.
Wt.of cement = 1875-375 = 1500 g.
Normal Consistency = (375/1500)*100.
= 25%.
Question should be revised as follows
If 375 ml or g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
Wt.of water = 375 g.
Wt.of cement = 1875-375 = 1500 g.
Normal Consistency = (375/1500)*100.
= 25%.
Khemraj Regmi said:
1 decade ago
My question for the participants of this discussion forum is that where is the formula for the percentage water as weight of cement divided by weight of water?
I agree with Prof. P. Rajayogan. Thank you Prof. I have the long time confusion for this question. I am also thinking so but I am not getting single one to report this question like that.
I agree with Prof. P. Rajayogan. Thank you Prof. I have the long time confusion for this question. I am also thinking so but I am not getting single one to report this question like that.
(1)
Protin said:
9 years ago
I agree with Rajayogan. If the weight of cement is only 375 gms and the water is 1500 gms/ml, try mixing it to make a paste, practically it won't form a paste but it will become a solution of cement and water. But 1500gms of cement and 375 gms of water is possible to make a paste.
So the question shall be recapitulated as stated by Prof. Sir.
So the question shall be recapitulated as stated by Prof. Sir.
Bashir Ahmad said:
5 years ago
Question should be like this if 1500 g of cement is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
Then,
Weight of cement = 1500g.
Weight of cement paste = 1875g.
Weight of water = 1875-1500.
= 375g.
% of water = wt.of water/wt.of cement.
= (375/1500)*100.
= 25%.
I think this is understandable.
Then,
Weight of cement = 1500g.
Weight of cement paste = 1875g.
Weight of water = 1875-1500.
= 375g.
% of water = wt.of water/wt.of cement.
= (375/1500)*100.
= 25%.
I think this is understandable.
(22)
AFROZ said:
1 decade ago
Total cement past weight 1875-1500 = 375g.
Weight of cement = 1500g.
Normal consistancy is the the amount of water which mixed in neat cement so that gauge of vicat appartes should be insert in cement past 35mm to 37mm. It takes as a percentage.
So,
Normal consistency of cement or percentage og water is.
375/1500*100 = 25%.
Weight of cement = 1500g.
Normal consistancy is the the amount of water which mixed in neat cement so that gauge of vicat appartes should be insert in cement past 35mm to 37mm. It takes as a percentage.
So,
Normal consistency of cement or percentage og water is.
375/1500*100 = 25%.
JANARDAN MONDAL said:
9 years ago
Percentage of water = (wt.of water/wt.of cement)100.
Question should be revised as follows:
If 375 ml or g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
Wt.of water = 1500 g.
Wt.of cement = 1875-1500 = 375 g.
Normal Consistency = (1500/375) * 100.
= 400%.
Question should be revised as follows:
If 375 ml or g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
Wt.of water = 1500 g.
Wt.of cement = 1875-1500 = 375 g.
Normal Consistency = (1500/375) * 100.
= 400%.
Dipyaman Ghosh said:
7 years ago
As I understand, actually the cement would have been 1500 gm, and water 375 gm.
Also think it subjectively, for 375 gm cement, if 1500 gm water is used, the chances of bleeding would be higher, and the slumping test results might come jeopardized hence rendering the cement to be not fit for structural use.
Also think it subjectively, for 375 gm cement, if 1500 gm water is used, the chances of bleeding would be higher, and the slumping test results might come jeopardized hence rendering the cement to be not fit for structural use.
Harish said:
2 years ago
I think "Percentage water" and "water content" are two different terms.
W.C = Weight of water/Weight of solids(or weight in dry state) &
% W.C = Weight of water/Total weight of sample.
What most of us are calculating is "water content" but the question is about % water content. Please mind it.
W.C = Weight of water/Weight of solids(or weight in dry state) &
% W.C = Weight of water/Total weight of sample.
What most of us are calculating is "water content" but the question is about % water content. Please mind it.
(5)
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