Effectiveness of using geo textiles in flexible pavements

Abstract

This project is being developed for use in of Virudhunagar District. It is around 20Kms in length. The sub grade must be stable, unyielding, properly drained and free from volume changes due to variation in moisture. If not, it leads to failure of pavement. Normally, pavement fails due to the reasons such as structural, functional, or materials failure, or a combination of these. But in the study area, it is observed that, the pavement failure is under the category of structural failure. To overcome this failure, it needs to improve the sub grade soil bearing capacity. In this project Synthetic Non-woven geotextiles (GT) were placed at different depth of soil and the improvement in soil bearing capacity are checked by CBR and UCC test. From this study, single layer of GT introduced at the centre (mid depth) shows better performance than those samples with the GT layer at other depth. Indian Geotechnical Conference – 2010, GEOtrendz December 16–18, 2010 IGS Mumbai Chapter & IIT Bombay