A STUDY ON STRUCTURAL PERFORMANCE OF NANO SILICA BASED GEO POLYMER CONCRETE

Abstract

In recent years, geopolymer concrete has attracted a lot of attention since it is a sustainable and environmentally friendly material with a small carbon footprint. The geopolymer concrete's qualities, such as mechanical strength, durability, and resistance to severe conditions, are improved by the addition of inhibitors. In this study, we offer an abstract on how corrosion inhibitors affect the characteristics of geopolymer concrete. In the study, fly ash, GGBS activated with NaOH and Na2SiO3, and the corrosion inhibitors sodium chloride and sodium nitrite, were used to create geopolymer concrete. The strengths of compressive force, split tensile force, corrosion potential, and chloride penetration of geopolymer concrete were assessed. Results indicated that the characteristics of geopolymer concrete and can be a possible replacement for conventional concrete in the building sector. The addition of corrosion inhibitors to the geopolymer concrete enhances its properties, including durability, and resistance to harsh environments. This study is based on the effect of geopolymer concrete cured at ambient conditions. Properties like Compression test strength, Split Tensile Test Strength, and durability properties like chloride penetration, and accelerated corrosion penetration are evaluated. The results showed an improvement in the durability properties of geopolymer concrete and canbe a promising alternative to traditional concrete in the construction industry. Geopolymer concrete is produced from the geopolymerization process, in which molecules known as oligomers integrate to form geopolymer networks with covalent bonding. Its production expends less thermal energy and results in a smaller carbon footprint compared to Ordinary Portland Cement (OPC) concrete. As such, it is pertinent for this review article to provide critical insight into therecent progress in research on the durability of geopolymer concrete. One significant outcome of the review is that the admixture of geopolymer concrete could be blended with additives such as micro- silica and fibers such as polypropylene fibers, to enhance its durabilityto replace OPC concrete in the construction industry