Comparative Evaluation of the Pozzolanic Activity of Artificial Pozzolans: Steel Slag, Fly Ash, and GGBFS

Open Access

Year : 2025 | Volume : 13 | Special Issue 01 | Page : 341 361
    By

    sravan chilukuri,

  • Sanjeet Kumar,

  • Ashwin Raut,

  1. Research Scholar, Department of Civil Engineering, Koneru Lakshmiah Education Foundation, Andhra Pradesh, India
  2. Associate Professor, Department of Civil Engineering, Koneru Lakshmiah Education Foundation, Andhra Pradesh, India
  3. Associate Professor, Department of Civil Engineering, Koneru Lakshmiah Education Foundation, Andhra Pradesh, India

Abstract

Evaluating the pozzolanic activity of specific industrial waste is crucial given the growing demand for cementitious materials. This research aims to expand the possibilities of incorporating pozzolanic waste such as Steel Slag (SS) as additives to cement. SS is a byproduct of the steel production process. A byproduct of the steelmaking process, slags have long been used as aggregates in building materials like concrete and roads. A closed-loop structure and circular economy might be established within the metallurgical sectors through improved slag utilization, which could promote growth in the economy and sustainability for future generations. Evaluation of cement substitutes’ pozzolanic activity is becoming more critical in light of the growing need for environmentally friendly cementitious products. The pozzolanic activity of SS was evaluated using three different methods: Frattini tests, strength activity index, and saturated lime. The results of the Frattini test and the strength of activity index test showed a significant association. However, there was no relationship found between these outcomes and the saturated lime test. The BET surface area analyzer, zeta analyzer, and Standard Le Chatelier flask were used in a number of analyses to characterize SS. The chemical composition of SS was evaluated using X-ray fluorescence (XRF), and mineralogical analysis was conducted using X-ray diffraction (XRD). A solubility curve was employed in the Frattini test to display the concentrations of hydroxyl (OH–) and calcium (Ca+2) ions. The Strength Activity Index (SAI) was determined by compressive strength tests using 10%, 20%, and 30% of the mortar cubes’ weight as stainless steel (SS) in lieu of some of the cement. Seventy-eight days after SS mortar was let to cure, the SAI was measured and the results were compared. The ratios for the Frattini and Strength Activity Index tests are 1:1 and 0.15:1, respectively, for the saturated lime test. The saturation lime test removes more Ca (OH)2 than other methods, hence the results do not match those from other procedures.

Keywords: Steel Slag, Frattini, strength activity, saturated lime

[This article belongs to Special Issue under section in Journal of Polymer and Composites (jopc)]

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How to cite this article:
sravan chilukuri, Sanjeet Kumar, Ashwin Raut. Comparative Evaluation of the Pozzolanic Activity of Artificial Pozzolans: Steel Slag, Fly Ash, and GGBFS. Journal of Polymer and Composites. 2024; 13(01):341-361.
How to cite this URL:
sravan chilukuri, Sanjeet Kumar, Ashwin Raut. Comparative Evaluation of the Pozzolanic Activity of Artificial Pozzolans: Steel Slag, Fly Ash, and GGBFS. Journal of Polymer and Composites. 2024; 13(01):341-361. Available from: https://journals.stmjournals.com/jopc/article=2024/view=202431


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Special Issue Open Access Original Research
Volume 13
Special Issue 01
Received 19/07/2024
Accepted 09/09/2024
Published 10/10/2024
Publication Time 83 Days
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