Effect of Hydrated Lime Stabilization on Consistency, Shear Strength and
Compaction Properties of Sulaimani CL Soil
Abstract
Cohesive soils present difficulties in construction projects because of
usually contain expansive clay minerals. However, the engineering
properties of soils can be stabilized by different techniques. The aim
of the research is to discover the influences of using hydrated lime on
the consistency, compaction, and shear strength properties of clayey
soil samples from Sulaimnai city, northern Iraq. The proportions of
added hydrated lime are 0%, 2.5%, 5%, 7.5% and 10% to the untreated
soil sample. The results showed significant effects on the engineering
properties of the selected soil sample and developed its strength. The
soil’s liquid limit, plasticity index, and optimum moisture content were
decreased with the increase of hydrated lime percent. While the soil’s
plastic limit and maximum dry density were increased. Also, the soil’s
unconfined compressive strength was significantly increased with the
hydrated lime content increase. Hence, hydrated lime is successful and
can be considered as an effective material to improve the strength and
consistency properties of the cohesive soils in Sulaimani city.