Mechanical and Durability Performance of Fly Ash on Bauxite Residue and Ground Granulated Blast Slag Based Geopolymer Composite

This study looked at the utilization of industrial by-products to create a workable geopolymer concrete (GPC) for construction work. The industrial by-products used in this study are bauxite residue (BR), fly ash (FA), and ground granulated blast slag (GGBS). Geopolymerization involves utilizing these industrial by-products as the basis for creating GPC, a sustainable and long-lasting alternative to conventional cement. In this study, BR was replaced with FA and GGBS. The mechanical and durability properties of the geopolymer concrete were analyzed. The maximum compressive strength obtained was 65.56 MPa for RFG5 specimen, which can be used in construction applications. The specimens RFG5 shows the minimum water absorption, porosity, charge passed and mass loss to different environmental conditions. The gel formation of the GPC can be observed from the energy dispersion spectroscopic images and X-ray diffraction (XRD) to increase the strength of GPC. However, the problem faced in this study was developed during the preparation of the alkali solution and curing of the specimens.