How to calculate the quantity of water for a given mix concrete. As it would be required to calculate for mix 1:2:4.
Mostly the ratio of 1:1.5:3 is used for M20 grade of concrete So, Volume of dry concrete = 1.54 to 1.57 times volume of wet concrete Assume, 1cum of concrete work ratio sum = 1+1.5+3 = 5.5 shrinkage or safety factor = 1.57 Total volume of wet concrete required is = 1.57cum Volume of broken stone reqRead more
Mostly the ratio of 1:1.5:3 is used for M20 grade of concrete
So, Volume of dry concrete = 1.54 to 1.57 times volume of wet concrete
Assume, 1cum of concrete work ratio sum = 1+1.5+3 = 5.5
shrinkage or safety factor = 1.57
Total volume of wet concrete required is = 1.57cum
Volume of broken stone require = (3/5.5) * 1.57 = 0.856 m3
Volume of sand require = (1.5/5.5) * 1.57 = 0.471 m3
Volume of cement = (1/5.5) * 1.57 = 0.285 m3
=0.285*1440 =411 kg
For 1 m3 of M20 (1:1.5:3)
Broken stone = 0.856 m3
Sand = 0.472 m3
Cement = 8.22 bag
Therefore,
8 bag of cement is required for 1cum of concrete work in M20
Preet Chovatiya
As we know 1:2:4 ratio is for M15 concrete. Generally Water quantity is calculated as per below formula: Water Quantity=W/C ratio*Cement Quantity Generally W/C ratio is lays between 0.4 to 0.6 as per IS 10262(2009). Now first we have to assume cement quantity, so let's assume cement quantity=50 KG aRead more
As we know 1:2:4 ratio is for M15 concrete. Generally Water quantity is calculated as per below formula:
Water Quantity=W/C ratio*Cement Quantity
Generally W/C ratio is lays between 0.4 to 0.6 as per IS 10262(2009).
Now first we have to assume cement quantity, so let’s assume cement quantity=50 KG and W/C ratio=0.5
Now let’s calculate water quantity for 50 KG cement.
Water Quantity=0.5*50=25 liter.
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