Study on Mechanical Properties of Lime Stabilized Active Bauxite Residue (Red Mud) and Fly Ash to Use as a Subgrade Material in Road Construction
- Title
- Study on Mechanical Properties of Lime Stabilized Active Bauxite Residue (Red Mud) and Fly Ash to Use as a Subgrade Material in Road Construction
- Creator
- Chandra K.S.; Krishnaiah S.
- Description
- Bauxite residue (Red mud) is a waste product produced during the extraction of aluminium from Bauxite by Bayers process. The huge requirement of aluminium for the various needs of mankind resulted to the enormous production of bauxite residue which is a very fine substance with high alkalinity. The high alkaline nature of this waste material shows a high impact on environment if it not covered or used in an appropriate method. This paper focusses on the usage of bauxite residue with the support of lime and flyash as a stabilizing material to use as a subgrade in road constructions and understand the toxicity levels of it upon leaching. Bauxite residue was stabilized with various ratios of fly ash and lime powder to its dry weight and determined the mechanical properties like California bearing ratio and unconfined compressive strength of all the combinations. Any industrial waste material will pose a environmental threat if the chemical analysis was not made upon using it as a subgrade material. In this study more emphasis was given to study the various hazardous chemicals present in the leachate collected from bauxite residue with fly ash and lime mixture. Leachate was collected by using Total characteristics leaching procedure (TCLP Method) and chemical analysis was performed and compared the results with the various water standards to recommend this material as a chemically safe material in the nature. All the results proved that bauxite residue upon stabilizing with the fly ash and lime is very much suitable to use as a subgrade material and environmentally safe. Kalahari Journals.
- Source
- International Journal of Mechanical Engineering, Vol-7, No. 1, pp. 2299-2308.
- Date
- 2022-01-01
- Publisher
- Kalahari Journals
- Subject
- Bauxite residue; Chemical analysis; Leachate collection; Mechanical properties; Microstructure; Strength; Subgrade material
- Coverage
- Chandra K.S., Department of Civil Engineering, JNTU Anantapur, Anantapur, India, Christ (Deemed to be University), Bangalore, India; Krishnaiah S., Department of Civil Engineering, JNTU Anantapur, Anantapur, India
- Rights
- Restricted Access
- Relation
- ISSN: 9745823
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Chandra K.S.; Krishnaiah S., “Study on Mechanical Properties of Lime Stabilized Active Bauxite Residue (Red Mud) and Fly Ash to Use as a Subgrade Material in Road Construction,” CHRIST (Deemed To Be University) Institutional Repository, accessed March 10, 2025, https://archives.christuniversity.in/items/show/15492.