Investigation on the Use of Crumb Rubber and Bagasse Ash in Road Construction

The naturally occurring materials like aggregates, sand, bitumen, etc. are depleting day by day due to its extensive usage in various civil infrastructural and building construction projects. On the other hand, the disposal of industrial and domestic waste in an eco-friendly way is a thrust area for researchers and has ample scope for its utilization as an alternative to the conventional exhausting natural materials. A number of researchers have already reported the potential use of various waste materials in road construction. The present study is an attempt to report the obtained results from extensive literature review upon the use of waste materials like tyre rubber, bagasse ash, in road construction. Furthermore, as a sustainable construction method, the experimental investigation on studying the effects of adding scrap rubber and bagasse ash as a partial replacement to bitumen and filler in the bituminous mixes respectively done by using the Marshall stability testing machine. The results obtained from the comparative study showed that scrap rubber can be used in road construction as a partial alternative to bitumen but the additions of bagasse ash lower done the strength & quality of the bituminous mix. So it is concluded that scrap rubber can be effectively used in the road construction as an alternative to bitumen but the use of bagasse ash is not been recommended in bituminous layers.