Characterization of Concrete with Nano-TiO₂ Particles using Compression and FTIR Methods

This study investigates the effects of adding nano-TiO₂ (1–5%) to flash-based cement mortar on structural performance, chemical composition, and mechanical strength. Nano-TiO₂ (nano-titanium dioxide) is added in different amounts of 1% to 5% by weight of cement, while flash, a refined form of fly ash, is utilized as a 20% substitute for cement. Compressive strength tests, FTIR (Fourier Transform Infrared) spectroscopy, flexural strength tests, compression testing machine analysis, and X-ray diffraction (XRD) analysis are used in the study to assess the material’s compressive strength, flexural strength, and structural composition. The findings show that while larger dosages cause particle agglomeration, which lowers efficiency, nano-TiO₂ at 2% dosage offers the greatest strength enhancement. The influence of nano-TiO₂ on the structure of cement mortar is validated by FTIR and XRD investigations, which confirm the changes in material composition. According to the study’s findings, adding nano-TiO₂ to flash-based cement mortar greatly increases its strength and durability, making it a good choice for high-performance and environmentally friendly building applications.