Data from an oedometer test are given in Table $1.$ Plot a graph of voids ratio, $e,$ against the

logarithm of the vertical effective stress, log ${}_v^{\text{'}},$ and explain its shape. Calculate $C_c$ and $C_s$

for the soil. The water content at the end of the test is $25\mathrm{.}88\%$ when the height of the

sample is $19\mathrm{.}22mm.$ Specific gravity, Gs$,$ is $2\mathrm{.}75.$

Table $1$

$($Ans$.0\mathrm{.}08,0\mathrm{.}009).$