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 6 of 10.
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%.
S r meena said:
9 years ago
1875 - 1500/1500 * 100 = 25%.
NishantRao said:
9 years ago
You need 1500 gm of water to make cement paste of 1875 gm i.e. you have 375 gm of cement. Hence, theoretically, NC of your Cement is 400%. Which is too much for any cement available in the market.
HARSHA G said:
9 years ago
1500 x 1.25 = 1875.
Therefore 25% is correct.
Therefore 25% is correct.
HARSHA G said:
9 years ago
P = (W/C) * 100,
P = CONSINSTENCY,
W = QUANTITY OF WATER ADDED,
C = QUANTITY OF CEMENT USED,
P = (375/1500) * 100.
ANS = 25%.
SIMPLY MULTIPLY THE OPTIONS TO GET 1875 BY % LIKE 1.25 * 1500 = 1875.
So, 25% IS RIGHT.
P = CONSINSTENCY,
W = QUANTITY OF WATER ADDED,
C = QUANTITY OF CEMENT USED,
P = (375/1500) * 100.
ANS = 25%.
SIMPLY MULTIPLY THE OPTIONS TO GET 1875 BY % LIKE 1.25 * 1500 = 1875.
So, 25% IS RIGHT.
Nur Asurah said:
9 years ago
How many percent needed to achieve the good quality cement paste?
Sachin Kadam said:
8 years ago
Generally 25-30% but excess water affect on strength (decrease strength).
Adam said:
8 years ago
Just imagine 1875 nos of fruit in a box 1500 apple and 375 oranges.
Obiously, percentage of apple is high => 1500/1875x100 = 80% and for oranges 375/1875x100 = 20%.
Similarly, water should be 80% and cement is 20%.
Obiously, percentage of apple is high => 1500/1875x100 = 80% and for oranges 375/1875x100 = 20%.
Similarly, water should be 80% and cement is 20%.
(1)
SUJOY HAZRA said:
8 years ago
(1875-1500) = 375,
375/1500 = 0.25,
0.25 * % = 25%.
375/1500 = 0.25,
0.25 * % = 25%.
Raja said:
8 years ago
1875-1500/1500 = 375 ÷ 1500=0.25 * 100 = 25%.
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