why only water cement ratio always......why not water sand ratio while making concrete

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why only water cement ratio always......why not water sand ratio while making concrete..

Answer / deepak

Water plays an important role in hydration of cement due to which cement gains strength, while sand acts only as a filler material to increase the volume of concrete or mortar as the case may be.

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why only water cement ratio always......why not water sand ratio while making concrete..

Answer / gowtham1993

For higher-strength concrete, lower water:cement ratios are used, along with a plasticizer to increase flowability. Too much water will result in segregation of the sand and aggregate 

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