Influence of Plastic Fiber on the Geotechnical Properties of Gypseous Soil

In the last five decades, rise of plastic industry led to increase in waste environment, therefore scientists were thinking reduce by recycling plastic. On other hand, there is a problem collapse gypseous collapsible soil upon wetting. this paper, one methods adopted improve mixing with 1% fiber shear strength and collapsibility at state saturation or The used classified as SW-SM, gypsum content 39% relative density equal 73%.Fiber made from environment investigation. Several tests conducted on such test, direct also model loading test before after worst case rain groundwater which was simulated during test. It concluded that value cohesion gradually increases 2 MPa natural 11 fibers. From three tests, load carrying capacity footing submerged increased 2.66 for untreated 4.8 when mixed extended depth 0.5 B. earing 6.8