A Study on Usage of Waste tire Chips in Highway Construction

This study investigates the use of crumb rubber and tire chips, derived from recycled tires, in pavements and highway embankments to address environmental concerns over tire waste and the demand for sustainable construction materials. Through laboratory tests, the geotechnical properties of clay soils stabilized with tire chips and crumb rubber-modified bitumen were evaluated. Results indicated that tire-derived materials enhanced the strength, ductility, and stability of pavements, with crumb rubber improving bitumen’s resistance to deformation. Tire chips were shown to increase soil ductility and load distribution without compromising permeability, making them suitable for hydraulic structures. Incorporating these materials into construction offers a sustainable solution to tire disposal challenges and enhances pavement durability, with potential for widespread field applications in regions with weak subgrades. Future research should focus on large-scale testing and optimizing crumb rubber content in bitumen for cost-effective performance.