Study on Strength Characteristics of Rubber Fibre Reinforced Soil

Objectives: In this work, the possibility of using waste tyre rubber fibre was an additive to improve the strength of expansive soil was investigated. Method: A type of problematic expansive soil is stabilised with the various percentages of waste tyre rubber fibre (5, 7.5, 10, 12.5 and 15%). The strength properties of stabilized soil was improved by increasing percentages of waste tyre rubber fibre up to 15% is studied by the CBR tests. Findings: Addition of waste tyre rubber fibre in the soil shows improvement in CBR values with the addition of waste tyre rubber fibre upto 7.5% and then on further reinforcement CBR value decreases. The results obtained shows that strength property modification results in the better stabilization for expansive soil. Applications: Increase in CBR value of stabilized soil can significantly reduce the overall thickness of the pavement and hence the total cost involved in the construction of road.