Answer Posted / abdul

water cement ratio req for complete hydration is 0.25, but it is not workable, so we can use w/c upto 0.45 to 0.5, more w/c ratio leads to formation of microscopic pores and increases shrinkage.leads to decrease in strength.

taking 0.5 w/c ratio water req for 1 bag of cement is 25 litres.

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