This study presents the structural analysis of soil
used as a road construction material, to assess the required
properties for improved stabilization. This is done by
determining the relationship between the force and
penetration cylinder plunger of a standard cross-sectional
area which is made to penetrate at a specified rate. The
compaction of soil sample gotten from three Abuja laterite
deposits was analyzed by subjecting it to moisture content
test, atterberg limit test, dry density test, specific gravity
test, Californian bearing ratio (CBR), and compaction
tests using modified proctor equipment. Their natural
moisture content, plasticity index, maximum dry density
(MDD), Optimum Moisture Content (OMC), Specific
gravity and CBR lies between 5.7-7.6%, 8.5-10.3, 1810-
2210Kg/M3, 16.2-18.4%, 2.02-2.49 and 33.1-50.8%
respectively. The results showed that Muko soil meets the
required specification and can be recommended as most
suitable a sub-base course used for road construction
material when compared with that of Jikwoyi and Apiwe
laterite soil material.