The soil borrow material, to be used to construct a highway embankment, has a mass

unit weight of $96\mathrm{.}0pcf,$ a water content of $8\%,$ and the specific gravity of the soil

solids is $2\mathrm{.}66.$ The specifications require that the soil be compacted to a dry unit

weight of $112lb$ per cf$.$ and the water content be held to $13\%.$

per bcy borrow, $132\mathrm{.}3l\frac{b}{c}f)$

a$.$ How many cubic yards of borrow are required to construct an embankment having

a $250,000$ cubic yard net section volume?

b$.$ How many gallons of water must be added to the borrow material, on a per cubic

yard basis, assuming no loss by evaporation?

c$.$ If the compacted fill becomes saturated at constant volume, what will be the water

content and mass unit weight of the soil?

An embankment is to be constructed at a moisture content of $12\%.$ Material will be

placed at the rate of $270ccy$ per hr$.$ The specified dry weight of the compacted fill is

$2,900lb$ per cy$.$ How many gallons of water must be supplied each hour to increase

the moisture content of the material from $7$ to $12\%$ by weight?

The borrow material to construct an embankment has a mass unit weight of $96\mathrm{.}5pcf$

and a water content of $8\%.$ The specific gravity of the solids is $2\mathrm{.}66.$ The contract

specifications require that the soil be placed in the fill at a ${}_d$ of $114$ pcf and a water

content of $10\%.$

a$.$ How many cubic yards of borrow are required to construct and embankment having

a $455,000-$cy net volume?

b$.$ How many gallons of water must be added per cubic yard of borrow material

assuming no loss by evaporation?