Research Article

Effect of calcination on the physical, chemical, morphological, and cementitious properties of red mud

Volume: 8 Number: 4 December 19, 2023
EN

Effect of calcination on the physical, chemical, morphological, and cementitious properties of red mud

Abstract

Red mud (RM), a by-product of aluminum production, poses environmental concerns with its disposal. This study explored calcining RM at 600 °C for 0–6 hours to utilize it as a cement substitute. Calcination up to 2 hours decreased particle size and increased surface area due to moisture loss, while further calcination reversed these effects. XRF analysis showed high Fe2O3, Al2O3, SiO2 contents. XRD revealed goethite transformed to hematite and gibbsite to alumina. SEM images displayed a loose then denser structure over time. 10% calcined RM incorporated into cement showed 2-hour calcined RM exhibited optimal properties, including high strength (46.27 MPa) and strength activity index (117.24%). SEM confirmed improved C-S-H gel formation with 2-hour calcined RM. In summary, calcining RM optimally at 600 °C for 2 hours allows its effective use as a sustainable cementitious material, providing environ- mental and technical benefits of RM utilization in cement composites.

Keywords

Supporting Institution

CVR College of Engineering

Project Number

Performance and microstructure characterization of red mud based concrete

References

  1. Muraleedharan, M., & Nadir, Y. (2021). Factors affecting the mechanical properties and microstructure of geopolymers from red mud and granite waste powder: A review. Ceram Int, 47(10), 1325713279. [CrossRef]
  2. Çelikten, S., Atabey, İ. İ., & Bayer Öztürk, Z. (2022). Cleaner environment approach by the utilization of ceramic sanitaryware waste in Portland cement mortar at ambient and elevated temperatures. Iranian J Sci Technol Trans Civ Eng, 46(6), 42914301. [CrossRef]
  3. Korkmaz, A. V., & Kayıran, H. F. (2022). Investigation of mechanical activation effect on high-volume natural pozzolanic cements. Open Chem, 20(1), 10291044. [CrossRef]
  4. Gou, M., Hou, W., Zhou, L., Zhao, J., & Zhao, M. (2023). Preparation and properties of calcium aluminate cement with Bayer red mud. Constr Build Mater, 373, 130827. [CrossRef]
  5. Venkatesh, C., Nerella, R., & Chand, M. S. R. (2020). Experimental investigation of strength, durability, and microstructure of red-mud concrete. J Korean Ceram Soc, 57(2), 167174. [CrossRef]
  6. Alam, S., Das, S. K., & Rao, B. H. (2019). Strength and durability characteristic of alkali-activated GGBS stabilized red mud as geo-material. Constr Build Mater, 211, 932942. [CrossRef]
  7. Mymrin, V., Alekseev, K., Fortini, O. M., Aibuldinov, Y. K., Pedroso, C. L., Nagalli, A., Winter, E. Jr., Catai, R. E. & Costa, E. B. C. (2017). Environmentally clean materials from hazardous red mud, ground-cooled ferrous slag, and lime production waste. J Clean Prod, 161, 376381. [CrossRef]
  8. Ortega, J. M., Cabeza, M., Tenza-Abril, A. J., Real-Herraiz, T., Climent, M. Á., & Sánchez, I. (2019). Effects of red mud addition in the microstructure, durability, and mechanical performance of cement mortars. Appl Sci, 9(5), 984. [CrossRef]

Details

Primary Language

English

Subjects

Material Production Technologies

Journal Section

Research Article

Early Pub Date

December 19, 2023

Publication Date

December 19, 2023

Submission Date

October 16, 2023

Acceptance Date

November 19, 2023

Published in Issue

Year 2023 Volume: 8 Number: 4

APA
Chava, V., & Chereddy, S. S. D. (2023). Effect of calcination on the physical, chemical, morphological, and cementitious properties of red mud. Journal of Sustainable Construction Materials and Technologies, 8(4), 297-306. https://doi.org/10.47481/jscmt.1376887

Cited By