Let's pretend that you are an earthwork construction control inspector, and you are checking

the field compaction of a soil lift. The laboratory compaction curve for the soil is shown in

the figure below. Specifications call for the compacted dry density to be at least $95\%$ of the

maximum dry density determined in the lab from a Proctor test and within $+-2\%$ of the

optimum water content. When you did a sand cone test in this lift, the volume of soil

excavated was $1,153c{m}^3.$ The weight of the wet soil was $2,197g.$ The mass of this soil after

being oven$-$dried was $1,924g.$ Answer the following questions:

a$)$ What is the dry density $(\frac{g}{c}{m}^3)$ and dry unit weight $(k\frac{N}{m^3})$ of this compacted lift?

b$)$ What is the field water content? $($water content of the compacted lift$)$

c$)$ What is the relative compaction $($R$.$C$.)$ of the lift?

d$)$ Does the compacted fill meet the specifications $($both $RC$ and water content at compactio

according to the results of your sand cone test? Say why yes or not.

e$)$ What is the degree of saturation of the compacted lift?

Assume a specific gravity of $2\mathrm{.}72.$