Strength Characteristics of Clay Soil Reinforced with Natural Fibers

The trend of using natural fibers in geotechnical engineering has become great interest to improve weak soils due some its advantages such as local availability, environmental friendliness, and lower cost. In this study, a set unconfined compression strength direct shear tests were conducted evaluate the performance Al-Nasiriya clayey soil reinforced with fibers. Three different types investigated sustainable ones, including wheat straw fiber palm frond fiber, well imperata cylindrica fiber. effects various contents (0.25 %, 0.5 0.75 1 %) lengths (20 mm, 30 40 mm) experimentally evaluated. results indicated that compressive increased significantly increase content length up an optimum value then decreased. % respectively. Compared unreinforced soil, values at by 102 126 66 for samples straw, fronds, fibers, properties improved reinforcement internal friction angle 17.7 42 9 Forever, cohesion are also inclusion