Problem 3\ A sand with

G_(s)=2.66

and

e=0.60

is completely dry. It then becomes wetted by a rising groundwater table. Compute the unit weight or

{

(

:k(N)/(m^(3)))

} under the following conditions:\ a. When the sand is completely dry\ b. When the sand is 40 percent saturated\ c. When the sand is completely saturated

A sand with Gs=2.66 and e=0.60 is completely dry. It then becomes wetted by a rising groundwater table. Compute the unit weight (lb/ft3 or kN/m3) under the following conditions: a. When the sand is completely dry b. When the sand is 40 percent saturated c. When the sand is completely saturated