Performance Evaluation of Kota’s Black Soil Using Perma-Zyme

Kota’s Black Soil (KBS) is an expansive soil, and it shrinks and swells in response to changes in moisture. Present research is focused on the use of Perma-zyme to stabilize Kota’s Black Soil. This research shows a series of testing on Kota’s Black Soil as well as tests on Perma-zyme stabilized KBS with varied Dosages ranging from 1 to 2 m3 in intervals of 0.25 m3 soil per 200 mL of Perma-zyme. On addition of Perma-zyme the soil shows notable improvements in its engineering and index properties such as; Plasticity, Density, and Uniaxial Strength (in compression). It is observed that the plasticity is decreased by 25% in comparison to virgin soil and significant raise in the uniaxial strength of the soil is perceived in terms of UCS. Optimum dosage yielded maximum UCS of 2.71 and 3.19 kPa for 0–7 days’ water retention period, respectively.