05-02-2011, 08:16 AM
ABSTRACT
Soil stabilization can be done in many ways. But the stabilization using waste plastic fibers is an economic method since the stabilizer used here is waste plastic materials, which are easily available. This report presents the various tests conducted on fiber reinforced soil with varying fiber content and their results are analyzed such that weather it can be used in the field.
Literature reviews discuss tests like CBR test, shear strength test, consolidation test, swelling test, shrinkage limit, desiccation cracks and hydraulic conductivity with different soil samples and their results are compared with unreinforced soil. CBR test results indicate that with a small increase in fiber content CBR values can be increased and thus improve the properties of soft clays. Randomly distributed polymer fibers in soil could increase the shear parameters and the load carrying capacity is effectively improved. The swelling is observed to be low in the case of fiber reinforced soil and the desiccation cracks were narrow cracks than deep wide cracks in the case of unreinforced soil. This method increased the hydraulic conductivity and the shrinkage limit.
A model analysis done on a polypropylene fiber reinforced soil gave the response of a soil slope to the loading and it indicates that reinforced soil can withstand more time than unreinforced soil slopes. The factor of safety is almost 1.5 times higher than unreinforced one.
