Experimental Study on Asphalt by the Partial Replacement of Filler with Red Mud

Transportation is the main means of communication for trade, commerce, and many other purposes. In transportation, the roadway plays a crucial role as it is having more advantages compared to other forms of transportation. In India, the maximum length of the highway network is of bituminous pavements. Bituminous pavement is a general type of bitumen mixture with recommended changes if any. Generally, the bituminous pavement has some failures such as potholes, rutting, cracking, shoving, etc, the major cause of the cracking, shoving, rutting is the lack of adhesion in the bitumen and heavy load vehicles. To solve this issue, we are going to replace the filler material with Bauxite residue in the incremental method from 0% to 25%. This study investigated the strength of the marshall stability specimen. At present NHAI is taking an initiative to construct rigid pavements for highways. Most of the rigid pavements are constructed with cement concrete. It is not always possible to supply cement because of its limited production there is a necessity to go for alternatives. Bauxite residue, also known as red mud, is a byproduct of aluminum production during bauxite processing. In India, this waste is often improperly managed, with large quantities being stored in deforested areas. Each year, around 22 million tons of red mud are produced in India alone, contributing to a global total of approximately 119 million tons annually [1]. By using this red mud in bitumen pavement, we are expecting to improve the marshal stability of the pavement and reduce the cost of the construction. By using this material in rigid pavements, we are expecting to improve the strength, durability of pavement and reduce the cost of construction and environmental pollution. Keywords: Bauxite residue powder (red mud), bitumen pavements, marshal stability, rigid pavements, compressive strength, flexural strength.