Study of Self Compacting Geopolymer Concrete subjected to variation in Geopolymerization Material Components

Abstract

Global warming has prompted the construction sector to consider environment-friendly newlineconstruction materials such as GPC, which can use waste by-products instead of traditional newlinebinders like cement, which contribute to ozone layer depletion through carbon dioxide newlineemissions during production. By making GPC Self compacting, also known as SCGC, newlinemore benefits can be obtained by minimizing the mechanical energy needed for newlinecompaction. Geopolymerisation uses an alkaline activator solution (AAS) and newlinealuminosilicate minerals as precursors or binders. Limited research exists on evaluating the newlineappropriate content of blended precursors using SCGC fresh, physical, mechanical, and newlinedurability qualities for binary and ternary blends. Therefore, in the current manuscript, an newlineideal precursor blend is produced employing both industrial [GGBFS, SF] and agricultural newlinewaste [RHA], resulting in the synthesis of long-lasting GGBFS-based SCGC under newlineambient temperature curing, which fulfils site scenarios. This study concludes that newlineincorporating 30% silica fume (SF) or 10% rice husk ash (RHA) as secondary binders newlineprovides excellent performance in binary blends, whereas the ternary blend GGBFS SF newlineRHA (65% 30% 5%) yields the most effective mix composition. newlineAmongst numerous precursors, GGBFS-based SCGC composites demonstrate greater newlineshort-term and long-term efficiency. As consequences of adding potassium as KOH and newlineK2SiO3 to a Na-based binary AAS consisting NaOH and Na2SiO3 to create a ternary newlineblended AAS. The key aim of the study is measuring an ideal tri blended AAS along with newlinethe ineffective AAS compositions using comprehensive fresh and hardened SCGC newlinecharacterisation. The objective of the current study was attained through nine designed newlineSCGC mixes, incorporating a control binary blended sodium-based AAS containing NaOH newlineand Na2SiO3. The other mixes comprise of four mixes with an amalgamation of Na2SiO3 newlinemixed with hydroxide solutions of sodium and potassium at varying quantities (NaOH: newlineKOH) [(3:1), (1:1), (1:3), (0:100)] and another four mix