Abstract
The study outlines the interpretation of strain-controlled static triaxial tests on homogenous samples of locally available soil (LS), fly ash (FA), and municipal soil waste fines (MSW fines), as well as layered soil-waste systems. The 2-layered (FA + LS) and 3-layered samples (FA + MSW fines + LS) were arranged according to the increasing density order. The tests were conducted under three controlled conditions, i.e., unconsolidated undrained (UU), consolidated undrained (CU), and consolidated drained (CD) to determine the shear strength parameters required for the design of any structure over similar deposits. Significant improvement in the shear strength parameters of the considered LS can be seen through a soil-waste layered system. The results from the considered example for the strip footing also show maximum improvement in the bearing capacity of LS when considered under a 2-layered system for saturated conditions (CU and CD). The layered soil-waste system not only has a geotechnical application, but also provides a solution to the large environmental problem of the considered wastes.
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