Enhancement Penetration Resistance of Load by Using Coconut Coir Fiber and Copper Slag for Unpaved Roads

When an external load is applied on expansive soil it impacts on soil structure due to changes in swell pressure, volumetric swelling, swelling strain, shrinking strains, and shear strength. Use of geosynthetics as layers in expansive soil gives exceptional results in geotechnical applications since it is conversely useful in increasing the soil properties if correctly placed. The innate geo-textiles are used as a separator, reinforcement, and drainage layer for unpaved section. Several studies have exploited different materials to develop the bearing capacity of poor soil. The performance of Coconut Coir Fiber geo-textile on an unpaved road and paved road models are investigated using the California bearing ratio test setup in this study. The beneficial effects of coir geo-textiles (woven along with non-woven) on load penetration behavior and on sub-grade soil in unpaved road and paved road models are reported in this study. When these coir geo-textiles are employed, the CBR improvement is adequate for eliminating the need for a robust foundation course reached in both unpaved road and paved road. In comparison to non-woven geosynthetic, woven geosynthetic has been found to perform significantly better.