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The soil of the civil projects often lacks the necessary geotechnical characteristics for the implementation of the project. Therefore, the importance of studies related to soil improvement methods is revealed. Some of the methods are soil stabilization with different polymers and reinforcement with fibers. This research examines the combined effect of stabilization and reinforcement of sandy soil with epoxy resin polymer and polyethylene fibers on standard density and unconfined compressive strength. In this regard, epoxy resin and polyethylene fibers are mixed with sand in different percentages and various tests have been performed on the samples. Also, to check the processing period, the samples were tested 4 times. The results of the tests indicate that adding epoxy resin to the samples up to 6% increased the strength, reduced the failure strain, and increased the stiffness of the specimens. Also, adding polyethylene fibers to the optimum percentage of additives to the specimens has increased the unconfined compressive strength, increased the failure strain, and decreased the stiffness of the specimens.
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