International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 06 | Jun 2023
p-ISSN: 2395-0072
www.irjet.net
“INVESTIGATION ON PERFORMANCE OF RED MUD (BAUXITE RESIDUE) BASED CONCRETE” Kedar D. Kulkarni1, Mrunmyee N. Deshpande2, Shailesh S. Angalekar3 1M.E. Structures student, Department Civil Engineering, Sinhgad College of Engineering, Pune, India 2Assistant Professor, Department Civil Engineering, Sinhgad College of Engineering, Pune, India
3 Professor, Department Civil Engineering, Sinhgad College of Engineering, Pune, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - Cement is a binder and an essential component
work, the red mud (bauxite residue) is used in concrete as a partial replacement of cement. For that purpose, weigh batching is done and red mud (bauxite residue) is replaced in concrete in variations of 5%,7.5% and 10% replacement of cement. The Mechanical testing’s and durability testing’s were performed to assess the performance of red mud (bauxite residue) placed concrete.
when making concrete. However, the production of it pollutes the environment by releasing a lot of CO2 into the atmosphere. This can be avoided by using less cement and partially substituting waste materials. Industrial waste includes red mud (bauxite residue). This waste is produced during the Bayer process, which separates aluminium from bauxite. When making concrete by weigh batching, experimental studies are done to determine the strength and durability of concrete in which cement is replaced with red mud (bauxite residue) in percentages of 5, 7.5, and 10. For the M30 grade, the current experimental study determines concrete's fresh and hardened qualities. When 7.5% by weight of red mud (bauxite residue) is used to produce concrete instead of cement, the maximum compressive strength is attained. Additionally, 7.5% replacement produced the greatest results for the flexural test. Thus, durability tests such as the rapid chloride penetration test, and influence of high temperature on concrete's compressive strength were carried out on the same percentage of specimens. The findings of the mechanical test show that replacing the red mud in concrete has an impact on its strength.
1.1 Objectives The aim of this research is to investigate the performance of red mud (bauxite residue) concrete on strength and durability of concrete by conducting series of tests by replacing cement in various percentages by red mud (bauxite residue). Some other objectives are
Key Words: cement, concrete, compressive strength, durability properties, flexural strength, mechanical properties, red mud, RCPT
1.INTRODUCTION
2. METHODOLOGY
The most adaptable man-made building material in the world, concrete is widely used in all kinds of construction projects. The properties of the materials, the amounts of the mix, the manner of compaction, and other controls during placement, compaction, and curing determine the strength, durability, and other attributes of concrete. Red mud (bauxite residue) is the by-product of Bayer's process from the aluminium sector that is produced as waste. It should be distributed properly because it is a very caustic chemical material that can contaminate ground water and pose health risks. For these sectors, disposing of such materials is a significant issue. Red mud (bauxite residue) is a solid waste that is produced worldwide in aluminium facilities. In 2020, there were more than 133 million tonnes of alumina produced annually, producing more than 175 million tonnes of red mud (bauxite residue). In the present experimental
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The objective involves using industrial by-products as building materials to improve waste management. Comparison of various properties of conventional concrete with Red mud (bauxite residue) replaced concrete. Performing various mechanical and durability tests on red mud (bauxite residue) concrete. Defining the optimum percentage replacement of cement with Red mud by the weight of cement.
In the present study, properties of concrete such as fresh and hardened properties were determined for M30 grade. Also, M30 grade of concrete with Red mud with various percentage were also determined. Mechanical properties are limited to compressive, tensile and flexural strength tests. Various tests were conducted and the test results are compared. Rapid chloride penetration test was conducted to test the durability properties of the specimens under study.M30 grade concrete is prepared under the guidelines of IS 10262–2019.Specimen cast with only OPC is taken as control mix. Concrete mixtures were then made by replacing cement with 5%, 7.5% and 10% of Red mud by the weight of cement.
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