A 1000 cubic yard embankment is to be built using soil from a borrow pit. The properties of embankment and the borrow pit soil are given below:
Embankment: Dry unit weight = 115 pcf; Water content = 15%
Borrow pit: Moist unit weight = 115 pcf; Water content = 10%
Use 2.68 for the specific gravity of soil
Required:
a. How many cubic yards of soil must be excavated from the borrow pit?
b. How many gallons of water must be added to increase the water content to 15% in the embankment?