Cigarette butts for laying roads
Cigarette butts could be the new construction material to be used to lay roads as well as building material which can be used in different applications and lightweight composite material. Researchers from the Royal Melbourne Institute of Technology (RMIT University) in Australia have demonstrated that asphalt mixed with cigarette butts can handle heavy traffic and also reduce thermal conductivity. The team encapsulated cigarette butts with bitumen and paraffin wax to lock in chemicals and prevent any leaching from the asphalt concrete. The encapsulated cigarette butts were thin mixed with hot asphalt mix for making samples. These encapsulated cigarette butts developed will be a new construction material which can be used in different applications and lightweight composite products. After the successful exercise to use plastics as the building material utilization of cigarette butts waste is another important innovative development.
In India plastic waste has been successfully used for constructing one lakh km of roads in 11 states. These roads are expected to last for more than 10 years, claims National Rural Road Agency. In this process plastic waste is mixed with bitumen and coating the mixed with stones.