Q$2($a$)$ The soft soil sample is obtained from the Parit Raja area. Propose and justify the

suitable method to determine the permeability of these soil.

$($b$)$ Critically diseuss the various parameters that affect the permeability of soil in the

field.

$($c$)$ The result of the laboratory compaction test is shown in Table $2.$ The specific gravity

of the soil is $2\mathrm{.}71.$

$($i$)$ Determine the optimum moisture content and the maximum dry density of the

soil using a suitable graph.

$($ii$)$ Plot the zero$-$air void line.

$($iii$)$ Predict the air content $(\%)$ at maximum dry density.

$($iv$)$ Propose the range of moisture content to be used in the field compaction work.

$($v$)$ The same soil was compacted in the field and the density of the soil obtained

from sand cone replacement method is $1590k\frac{g}{m^3}.$ Determine whether the

compaction work is fulfilling the requirement by the department of public work

Malaysia $($JKR$)?$

$($vi$)$ Proposed your recommendation if the compaction work does not fulfil the

requirement.

Table $2$: Compaction test result