Analysis Of Mechanical and Microstructural Properties Of Geopolymer Concrete Using Nano TiO2

Abstract

Geopolymer concrete (GPC), an eco-friendly building material, is instinct by alkaline liquids to act as a binder in concrete. GPC evinces many outstanding properties such as rapid strength, less shrinkage, less creep, superior withstand against sulfate, and chloride attack. The present study is to explore the response of nano titanium dioxide (nano-TiO₂) on Ground Granulated Blast Furnace Slag (GGBS) based GPC at ambient curing. As an initial study, GPC with 10 M was carried out for different ratios of Na₂SiO₃ to NaOH solutions between 1.5 to 3.5. Out of all mixes, the alkaline activator ratio harmonized to the highest compressive strength was ascertained to be at 2.5. This ratio was kept constant for further study in GPC by increasing the addition of nano TiO₂ from 1–5% by weight of GGBS. The effect of nano TiO₂ on strength properties, durability studies, and micro structural properties on GPC are studied and discussed at length in this paper.