• Tapiwanashe David Ndagurwa
• Tinaishe Ashley Chipemba
• Karan Chauhan

The long-term performance of flexible pavements is strongly influenced by the engineering properties of the subgrade and subbase soils, which often suffer from low bearing capacity and instability under repeated traffic loading. Conventional geosynthetics have been successfully utilized to improve soil performance; however, their synthetic nature raises concerns regarding cost, sustainability, and environmental impact. This research explores the application of woven natural geotextiles made from cotton and jute fibers as eco-friendly reinforcement materials in pavement construction. Laboratory investigations were conducted on soil samples with and without the inclusion of woven fiber layers placed within the subgrade and subbase soil samples. Standard tests, including compaction, consolidation, California Bearing Ratio (CBR) & Shear parameters, were performed to evaluate strength, deformation behavior, and load-bearing improvement. The results demonstrate that the inclusion of woven cotton and jute geotextiles significantly enhances soil stability, increases slope stability values, and reduces deformation, thereby improving the overall performance of pavement layers. Comparative analysis indicates that natural geotextiles can serve as sustainable alternatives to synthetic reinforcements, offering both technical efficiency and environmental benefits. The study highlights the potential of integrating woven natural fibers in pavement design to achieve improved road longevity, slope stability, and sustainability in highway infrastructure.

Geosynthetics, Ground Improvement, Soil Stabilization, Slope Stability, Load-Bearing Capacity, Road Construction, Cotton fiber and Jute fibers

"Optimizing Road Longevity and Sustainability through Natural Geosynthetics for Ground Improvement in Road Construction", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.13, Issue 1, page no.b92-b97, January-2026, Available :http://www.jetir.org/papers/JETIR2601116.pdf

"Optimizing Road Longevity and Sustainability through Natural Geosynthetics for Ground Improvement in Road Construction", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.13, Issue 1, page no. ppb92-b97, January-2026, Available at : http://www.jetir.org/papers/JETIR2601116.pdf