Abstract
The primary function of road pavement is to distribute and transmit the wheel loads at the surface to a sufficiently large area of sub grade without failure or excessive deformation. The sub grade must be stable, unyielding, properly drained and free from volume changes due to the reasons such as structural, functional, or materials failure, or a combination of these. This project is being developed to be implemented in Perur – Ukkadam by-pass road of Coimbatore,Tamilnadu, India . It is around 2.2 Kms in length. In the study area, it is observed that the pavement failure is under the category of swelling and shrinkage characteristics of soil. To overcome this failure, its necessary to improve the bearing capacity of sub grade soil . For this purpose the Natural Fiber Composites (Coir & Sisal) were used in improving the soil bearing capacity and checked for CBR test to design flexible pavement. Thus this study shows the effectiveness of Natural Fiber Composites (Coir & Sisal) in improving performance characteristics of pavements.
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