The Influence of Slag on the Properties of Fly Ash-based Geopolymer Composites

Open Access

Year : 2023 | Volume : 11 | Special Issue : 01 | Page : 46-51

    Ramamohana Reddy Bellum

  1. Associate Professor, Aditya Engineering College, Andhra Pradesh, India


Inorganic molecules undergo a chemical reaction that results in the production of a brand-new building material known as geopolymer concrete. Otherwise known as an inorganic aluminohydroxide polymer, geopolymer is made mostly from by-products like fly ash and geologically derived silicon (Si) and aluminium (Al). It is a superior building material for the future because of its great mechanical qualities, significant chemical resistance (attack by magnesium or sulphate), low shrinkage and creep, and environmentally benign nature. It has been proven that geopolymer concrete (GC) is suitable for use in construction projects, including the building of walkways, prefabricated elements, and pavements. The current study intends to construct a road network using GC while sustainably utilizing industrial by-products. GC is a creative and environmentally sustainable alternative to conventional Portland cement (OPC) concrete. In this study, the GC was
produced using binders such as fly ash, ground granulated blast furnace slag, and cement. Two distinct types of solutions were required in order to activate these binders (an alkaline solution which was prepared in the laboratory and activator solution purchased commercially). The surface of the GC got denser, which decreased the permeability of chloride ions, water absorption, open porosity, and sorptivity values. The microstructural examination revealed distinct quartz, calcite, and C-A-S-H formations. The 0.45 S/B ratio mixes also showed greater Si/Al ratios and higher quartz and calcite percentages.

Keywords: Geopolymer composites, mechanical properties, microstructural properties, denser structure and durability

This article belongs to Special Issue Conference International Conference on Innovative, Sustainable Materials and Technologies (ICISMT-2022)

How to cite this article: Ramamohana Reddy Bellum The Influence of Slag on the Properties of Fly Ash-based Geopolymer Composites jopc 2023; 11:46-51
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Conference Open Access Original Research
Volume 11
Special Issue 01
Received December 21, 2022
Accepted March 19, 2023
Published June 23, 2023