Abstract— Geosynthetics have become well established construction materials for geotechnical and environmental application in most parts of the world. Because they constitute manufactured materials, new products and applications are developed on a routine basis to provide solution to routine and critical problems alike. This paper focuses on recent advances on geosynthetics products such as geotextiles, applications and design methodologies for reinforced soil and environmental protection works. Geotextiles have been successfully used for reinforcement of soils to improve the bearing capacity. Laboratory California bearing ratio (CBR) tests were performed to investigate the load-penetration behavior of reinforced granular soils with geotextile. Samples of granular soil with different grading are selected and tested without reinforcement. Then by placing geotextile at certain depth within sample height in one and two layers, the effects of the number of geotextile on the increase in bearing capacity of reinforced granular soils and grading on performance of geotextile is discussed. The result of these tests shows that, bearing ratio of reinforced granular soils with geotextile increases. And also done the direct shear test for determine the consolidated-drained shear strength of a sandy to silty soil.
Keywords— Geosnthetics, Geotextiles, CBR, Granular soils, Direct shear test
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