Abstract
Abstract
This research aims to study the effect of utilization of industrial waste/lime (by-product of sugar factory) on some engineering properties of clayey soil selected from Mosul city. These characteristics are unconfined compressive strength, permeability, soil-water characteristic curve and Durability. The tests were performed at different percentages of lime (2, 4 and 6) % and industrial waste/lime (2, 4, 6 and 8) % by dry weight of soil.
Results showed a decrease in the plasticity, swelling pressure and swelling potential of treated soil. The soil became non plastic at optimum lime, waste lime contents of (4, 6) % respectively. Unconfined compressive strength (UCS) increased with increasing of curing time and stabilizer contents and reached a maximum value at optimum stabilizer contents. The (UCS) of soil stabilized with industrial waste lime was more than that stabilized by lime at different curing times. Durability tests (immersion and slaking) showed that the treated soil with lime was more durable than that treated with waste lime. The Permeability of treated soil was found to be more than that of natural soil. On the other hand, the permeability of soil treated with waste lime was more than that of treated by lime at different curing time and it reached a maximum values at (4, 2)% for the soil treated with waste lime and lime respectively. The soil-water characteristic curve showed that the soil ability to hold water increased with increasing lime and industrial waste contents.
Keywords: clayey soil, lime, industrial waste lime, strength & durability, hydraulic properties.
