Paper Key : IRJ************567
Author: Akash Kumar
Date Published: 05 Dec 2022
Abstract
As a part of the study, calcium chloride and fly ash were tested on a Black Cotton soil that has expansive properties in order to improve its engineering properties. The laboratory experiments were conducted by mixing calcium chloride solutions of 1%, 2% and 3% with black cotton soil in a ratio of 1:3, 2:3 and 3:3. By comparing the results obtained with calcium chloride percentages with fly ash percentages of 20% and 30%, we were able to compare the results obtained. In this study, calcium chloride and fly ash were evaluated for their consistency limits and their differential free swell. We performed an unconfined compressive strength test at a cure time of 7, 14, and 28 days in order to compare the results of the test with those obtained at a cure time of 0 days in order to find out which conditions lead to the best results. There was a decrease in the consistency limits and a reduction in the swelling index of the soil samples after being subjected to wet and dry cycles. As a result of wet and dry cycles, the calcium chloride mixed soil samples showed higher strength and a lower swelling index than the unmixed soil samples.