 The addition of plastic strips and leaf ashes to three different soils resulted in improvements in the soil's maximum dry density, optimum moisture content, soaked California bearing ratio, shear strength parameters, plastic index, and Adderberg limits. The best results were obtained when 2% plastic strips and 6% leaf ashes were added to the soils. This article was authored by Vasudevan Yathushan and Yudini Nanapriya Anaratapaswala.