This project investigates the influence of fibers on improving properties of soil sub grade and bituminous mixes for the construction of flexible pavement. Conventional practices in design and construction of pavements require material of higher quality to satisfy the required standards. Soil to be used as sub grade does not satisfy this in many parts, making it mandatory to seek alternative solutions for the use of weaker sub grade. To achieve stronger sub grade, an attempt has been made to use polypropylene fiber with soil at various percentages 0.25%, 0.5%, 0.75% 1%. Nylon fiber is used as an additive for bituminous mixtures to obtain an enhanced behavior concerning resistance to fatigue cracking and aging. The percentages of nylon fiber added are 0.25%, 0.5%, 0.75%. Detailed laboratory investigations are carried out.
Key words: Pavement, Synthetic Fiber
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