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,
20%
25%
30%
35%
40%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
95 comments Page 5 of 10.

Muhammad Noman said:   8 years ago
W of cement= W of cement paste-W of water=1875-1500=375.
W of water=1500.
%age of water or P=(W of water/W of cement)*100=1500/375*100= %.

Abukhaled said:   1 decade ago
Wt. of water = 1500 gm.

Wt. of cement = 1875-1500 = 375 gm.

w/c = 1500/375 = 40%.

This means each 1 gm of cement needs 4 gms of water.

Hassanain Turi said:   1 decade ago
As stated in question 1500 g of water and paste is 1875 then simply we get (weight of water/water+cement)*100 = (1500/1875)*100 = 80%.

Jairaj said:   1 decade ago
The standard normal consistency of cement is 22% to 30% of weight of dry cement. If satisfied my answer then give a comment on this.

Sagar said:   1 decade ago
What in earth, the percentage of water = wt. of cement/wt. of water.

% of water would be (wt. of water/wt. of paste)*100.

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.

Lam said:   8 years ago
1500 g of water mix with 375 g of cement it's not possible for use in any construction.

I agree with Prof.P.Rajayogan

Sudesh said:   6 years ago
@Farid.

You're right It's 400%.
Hence For Possible For Cement Paste.
Question Should be 1500gm Cement for 25%.

Shamim alam said:   1 decade ago
weight of cement - weight of water/weight of tare wt*100

a - b/b*100.

So, 1875-1500 = 375/1500*100 = 25%.

Antony praveen said:   9 years ago
@ Malavika & @Rajayogan.

Why we calculate the percentage of water. What's benefits? Please discuss with us.


Post your comments here:

Your comments will be displayed after verification.