Abstract
AbstractFiber is a non-definite failure plane reinforcing material used for enhancing the engineering properties of various building materials. This paper presents the effect of 12 mm polypropylene fiber on shear strength characteristics of fine sand. Direct shear tests are conducted on fine sand reinforced with varying percentages of randomly distributed fiber, from 0 to 1.50% at an increment of 0.25% (by dry weight of soil). With increase in fiber content, angle of shearing resistance increased. Development of apparent cohesion is witnessed from the test data due to the formation of thin films of fiber. Maximum shear strength of fine sand observed at 1.0% of fiber content. In addition, the fiber effect on permeability characteristics is also ascertained through constant head permeability test, and reduction in coefficient of permeability is observed with fiber inclusion. Thus, increases the seepage resistance of the fine sand.KeywordsFine sandFiberShear stressAngle of shearing resistanceApparent cohesionFiber film
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