2. (5 pts) As part of a quality control program, the field inspection engineer conducted a sand cone

test to determine the field density. The following data were recorded using the sand cone method.

• Total weight of moist soil removed from the Hole:

• Weight of sand cone apparatus before filling Hole:

• Weight of sand cone apparatus after filling Hole:

• Weight of sand to fill Cone:

• Unit weight of Ottawa Sand:

7.94 Ib

14.42 lb

4.19 lb

3.43 lb

98.0 lb/ft³

Also, the water content was obtained from an oven dry method with the following data (Disregard the tin

cup weight)

• Weight of soil in a tin cup before drying:

• Weight of soil in a tin cup after drying:

1.35 lb

1.20 lb

With the dataset shown above, determine the dry unit weight of the field-compacted soil (show all your

work).