Effects of Polyester Geo Textiles On CBR Of Road Sub Base

Polyester Geo - textiles have been successfully used for reinforcement of soil to improve bearing capacity. In this paper the Polyester Geo - textiles as a tensile materials have been used for reinforcement of different kind of soils. Laboratory California bearing ratio (CBR) tests were performed to investigate the load penetration behavior of different 3 kinds of soils (B. C. Soil, Murum & both soil) with Polyester Geo textiles. Samples of soil tested for CBR without reinforcement & samples are also tested with Polyester Geo textiles. Laid at various distance from top (i.e 1/3, 2/3 & half distance) of compacted thickness of soil suitability for improvement of sub grade in all aspect is calculated. Result shows that soil sample murum with Polyester Geo textiles laid at 1/3rd distance from top are most economical & increases the CBR to considerable extent