The main objective of the current study
was to determine the strength of stabilized, soft,
clayey soil using OPC and partially replacement
of OPC with RHA. Based on compressive strength
testing, strength development was evaluated
in order to compare the reaction products from
the hydration process that were examined by
X-ray diffraction (XRD) analysis. Observation
of changes to the stabilized soil structure were
performed using scanning electron microscopy
(SEM).