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 8 of 10.
Malavika said:
1 decade ago
Which one of the answer is correct. According to the question the weight of the water is 1500g why should we take 375g.
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%.
SABYA said:
10 years ago
Sir I can't understand why the weight of water is taken (1875-1500) = 375 gm?
Here as per question the wt of water = 1500 gm.
Wt of cement = 375 gm.
And we know that % of water = (WT OF WATER/WT OF CEMENT)*100.
Here as per question the wt of water = 1500 gm.
Wt of cement = 375 gm.
And we know that % of water = (WT OF WATER/WT OF CEMENT)*100.
B.Arun kumar said:
1 decade ago
Percentage of water = wt of cement/weight of water = (1875-1500)/[1500]*100 = 25%.
Aftab Alam said:
9 years ago
Percentage of water = wt of water/wt of cement.
Agree @ P. Rajayogan.
Agree @ P. Rajayogan.
Bharat muduli said:
9 years ago
Percentage of water = wt of cement/weight of water = (1875 - 1500)/[1500] * 100 = 25%.
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.
Y. vamsi krishna said:
9 years ago
Normal consistency of water (%) = (wt.of water/wt .of cement) * 100,
Then given
wt .of water : 1500.
wt.of cement : 1875.
= (1500/1875) * 100 = 80%.
Then given
wt .of water : 1500.
wt.of cement : 1875.
= (1500/1875) * 100 = 80%.
MD SAMSUZZAMAN said:
9 years ago
Actually, if we consider the above question then the answer will be 400%.
Antony praveen said:
9 years ago
@ Malavika & @Rajayogan.
Why we calculate the percentage of water. What's benefits? Please discuss with us.
Why we calculate the percentage of water. What's benefits? Please discuss with us.
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