Performance and Evaluating the Characteristics of Flexible Pavements by Using Shredded Aggregate

Abstract

Abstract: Now-a-days it is necessary to utilize the wastes effectively with technical development in each field. The old abandoned tyres from cars, trucks, farm and construction equipment and off road vehicles are stockpiled throughout the country. This leads to various environmental problems which include air pollution associated with open burning of tyres and other harmful contaminants like (polycyclic aromatic hydrocarbon, dioxin, furans and oxides of nitrogen) and aesthetic pollution. They are non biodegradable; The waste rubber tyre has become a problem of disposal. Due to increase in demand of automobiles in our daily lives, rubber tyre waste is also increasing simultaneously which results in disposal of rubber waste in landfill. The rubber takes more time to decompose and also leads to land pollution. So in this project the waste rubber can be reused in road construction works by partially replacing with coarse aggregate with bitumen in percentage (5, 10, 15, 20, 25 and 30) and carried out different test result based on it. This is not only to minimize the pollution occurred due to waste tyres but also minimizes the use of conventional aggregate which is available in exhaustible quantity. The addition of rubber tyre in flexible pavements enhances the properties of road surfaces as well as it reduces the rubber tyre waste from the land and decreases the self-weight of the bitumen mix.