Answer / shaikh moyunuddin

for rcc minimum M20 grade is used
it's depend how's the building is design
& m20 propotion is 1:1.5:3(cement:sand:aggregate)
& for water 40 to 55%
total area of rcc

Answer / sandip

the water cement ratio of m-20( 1 : 1 1/2 : 3 ) is taken normally 0.45 . Example for 1 cmt m-20 grade of concrete cement consumption is around 350 kg, thus the water consumption will be as below

consumption of water = cement x 0.45

= 380 x 0.45

= 171.00 kg ( =188 lit )

Answer / csr

It depends on which grade we are using and it depends on
the required strength.
minimum we start from M15 1:2:4,
M20 1:1.5:3,
M25 1:1:2

Answer / aabid

.40% water cement ratio

Answer / shri

m20 1:1.5:3 Cement:Fine aggregate:coarse aggregate water in ratio 0.5

Answer / hiren

in rcc generally M-20 is used hence for M-20 proportion are
1:1.5:3.... c:ca:water

Answer / fathi abu sabha

for m20 1:3:6 , cement ,sand , aggregate
for m30 1:2:4 , cement ,sand , aggregate

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