Abstract:
So/ rs useful as a building material in civil engineeing work, one
of which is roed conslruclion The stebilizetion of the pevement
construction will be directly affected by the ability of the subgrade to
accept and transmit the wo*ing load. However, not all subgrade layers
are able to withstand the load above it. Only soil that has a good
classification is able to function as a carrying capacity.
/':^^^t lh' ^l^t, ^^;l^ t-^,1^ hi^t ^r^^l;^i^. ^^^^'1;^^ ah^ t,^l'ta^ \rvttvtetr, v,q, ov,,o t'Qt.. t,tv,t P,al,.'v,.t P' vye' tt..o,
will change when the water content changes. These propefties can cause
damage to pavement construction such as cracked roads, raised
pavement layers, bumpy roads and so on. Therefore, the poor clay
properties must be conected before carrying out any construction.
This study was conducted to determine how strcng the effect of
adding cocoa husk asfi and ice husk ash to clay soils on the compressive
and shear strength values. The tesf was canied out by mixing clay with
cocoa husk ash and ice husk ash with a composition of clay, clay + 5%
t'icc husk ash + 09/o cocoa husk ash, clay sai! + 5o/o t'ice husk ash + 5o,L
husk ash cacao, clay + 10%o ice husk ash + 10/o cocoa husk ash, clay +
15% ice husk ash + 15yo cocoa husk ash. ln testing the compressive
strength of clay added with ice husk ash and cocoa husk ash, the
average compressive strength (qu) of stress = 0.468 (kg/cm2) but at the
addition of 5%, 10% and 15%, it increased respectively. while for testing
the shear strength of clay, rice husk ash and cocaa husk ash were added
at the addition of 5o/o, 10%, and 15% inueased.
