WILL ANY COLLEAGUE TELL ME THAT WATER RATIO IS FIXED FOR ANY TYPE OF CONCRETE?

WILL ANY COLLEAGUE TELL ME THAT WATER RATIO IS FIXED FOR ANY
TYPE OF CONCRETE? OR HOW CAN WE DETERMINE THE RATIO OF WATER
IN A CONCRETE MIX.

Question Posted / suhail akhter

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WILL ANY COLLEAGUE TELL ME THAT WATER RATIO IS FIXED FOR ANY TYPE OF CONCRETE? OR HOW CAN WE DETER..

Answer / pankaj

not such that but we can consider it as 0.48 for nominal mix it is totally depends on concrete ex poser condition and grade of conc. and cement consumption also consider

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WILL ANY COLLEAGUE TELL ME THAT WATER RATIO IS FIXED FOR ANY TYPE OF CONCRETE? OR HOW CAN WE DETER..

Answer / santosh singh

According to British Standard Specifications

water requirement of concrete = 28% by weight of cement + 4% by total weight of aggregate

M25 M20 M15
proportion 1:1:2 1:11/2:3 1:2:4

water cement ratio 0.43 0.51 0.58
(by weight)

quantity of water is calculated as

for M20
wt of water/wt of cement(50kg) = 0.51

Wt of water per bag of cement = 0.51 x 50 = 25.5 liters

similarly for M25

wt of water per bag of cement = 0.43 x 50 = 21.5 liters

wt of water per bag of cement = 0.58 x 50 = 29 litres