Synthesis of Kudremukh Iron Ore Tailing Based Geopolymer Coarse Aggregate using Fly-Ash as Precursor in the Construction Industry

Guruba Savaraja H.*, Sunil C. L. **, H. K. Ramaraju***
*-**** Department of Civil Engineering, Dayananda Sagar College of Engineering, Bengaluru, Karnataka, India.
Periodicity:June - August'2020
DOI : https://doi.org/10.26634/jce.10.3.17526

Abstract

Fact that the large-scale dumping of the mining and industrial waste causes various environmental impacts and health issues in human and animals. It is necessary to use the wastes in an effective manner to prevent such environmental problems. Fly ash and iron ore tailings are the two major wastes of such kind. Even though these two wastes are being used in various sector, the utilization of these waste is less than the waste generated. This study mainly concerns with the usage of fly-ash and iron ore tailings in construction industry in sustainable manner. Geopolymer coarse aggregates are synthesized by using the fly-ash and iron ore tailing with alkaline activator solution which activates geopolymeric source. The cubes of side 75 mm x 75 mm x 75 mm are prepared by mixing fly-ash and IOT in 70:30 proportion respectively with varying molarity of alkaline activator as 6M, 8M, 10M up to 12M. Compression test are carried out on the prepared cubes. It has been observed that as the molarity of alkaline activator increases, the compressive strength also increases. 10M of Alkaline activator is used for the synthesis of geopolymer coarse aggregates. Aggregates are prepared by crushing of cubes. XRD and SEM analysis are preferred for the characterization of raw materials.

Keywords

Geopolymer, Iron Ore Tailing (IOT), Alkaline Activator, Aggregates, Molarity, Compressive Strength.

How to Cite this Article?

Savaraja, H. G., Sunil, C. L., and Ramaraju, H. K. (2020). Synthesis of Kudremukh Iron Ore Tailing Based Geopolymer Coarse Aggregate using Fly-Ash as Precursor in the Construction Industry. i-manager's Journal on Civil Engineering, 10(3), 1-6. https://doi.org/10.26634/jce.10.3.17526

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