$5\mathrm{.}16$ A field compaction control test was conducted on a compacted lift. The mass of the material removed from the hole was $1820$ g and the volume of the hole was found to be

$955$

$$cm

$3$

$.$ A small sample of the soil lost $17$ g in the drying test and the mass remaining after drying was $94$ g$.$ The laboratory control test results are shown in Fig. P$5\mathrm{.}16.$

If end$-$product specification requires $100\%$ relative compaction and

$$

$=$

$($

optimum

$$

$3$

$\%$

$)$

to

$$

$=$

$($

optimum

$$

$+$

$$

$1$

$\%$

$)$

$,$ determine the acceptability of the field compaction and state why this is so$.$

If it is not acceptable, what should be done to improve the compaction so that it will meet the specification?