The presence of moisture in the sand _____________ the volume of the sand.(a) Increases(b) Decreases(c) Shrink(d) ContractI had been asked this question in a national level competition.This is a very interesting question from Cement Concrete Construction in section Cement Concrete Construction of Construction & Building Materials

The presence of moisture in the sand _____________ the volume of the s

1.	The presence of moisture in the sand _____________ the volume of the sand.(a) Increases(b) Decreases(c) Shrink(d) ContractI had been asked this question in a national level competition.This is a very interesting question from Cement Concrete Construction in section Cement Concrete Construction of Construction & Building Materials
Answer» Right choice is (a) Increases Easiest EXPLANATION: The increase in volume of sand is DUE to the fact that the moisture causes film of water around sand particles and it results in the increase of volume of sand. For moisture content of about 5% to 8%, this increase of volume may be as much as 20% to 40%, depending UPON the grading of sand.

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