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<p>The objective of the study is to assess the effect of Nano TiO₂ (NT) on the rheological properties of cement paste. XRD, SEM, and FTIR techniques were used for characterisation; NT was used in powdered form with 1, 2, 3, and 4% by weight of cement. The ultrasonication method was used for effective dispersion of nanoparticles in cement paste. The effect of NT on rheology, microstructure, workability, and compressive strength (<i>f</i><sub>c</sub>) was studied. The <i>f</i><sub>c</sub> showed the improvement by 13.64, 12.54, and 15.56% for 3, 7, and 28&#xa0;days, respectively, while mixing with 4% NT showed the highest improvement in <i>f</i><sub>c</sub>. The usage of NT discovered the improvement in microstructure by densifying the paste, which was observed in SEM. The workability and pumpability of concrete, etc., depend upon viscosity, thixotropy, and yield stress, which are rheological parameters. The workability of cement paste is affected by the use of NT; the use of nanoparticles in cement paste shows the enhancement in rheological properties, <i>fc,</i> and microstructure. The research highlights the significance of the rheological parameters of cement paste. It has been observed that the nanoparticles are having potential in enhancing the rheological properties, microstructure, and mechanical strength of cement composites.</p>

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Effect on use of nano TiO2 on rheological behavior and strength of cement paste: an experimental study

  • 期刊论文

  • 发表日期：

    2025年3月20日

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  • Sudhanshu Pathak,
  • Gaurang Vesmawala,
  • Mallikarjun M. Hulagabali

摘要

The objective of the study is to assess the effect of Nano TiO₂ (NT) on the rheological properties of cement paste. XRD, SEM, and FTIR techniques were used for characterisation; NT was used in powdered form with 1, 2, 3, and 4% by weight of cement. The ultrasonication method was used for effective dispersion of nanoparticles in cement paste. The effect of NT on rheology, microstructure, workability, and compressive strength (fc) was studied. The fc showed the improvement by 13.64, 12.54, and 15.56% for 3, 7, and 28 days, respectively, while mixing with 4% NT showed the highest improvement in fc. The usage of NT discovered the improvement in microstructure by densifying the paste, which was observed in SEM. The workability and pumpability of concrete, etc., depend upon viscosity, thixotropy, and yield stress, which are rheological parameters. The workability of cement paste is affected by the use of NT; the use of nanoparticles in cement paste shows the enhancement in rheological properties, fc, and microstructure. The research highlights the significance of the rheological parameters of cement paste. It has been observed that the nanoparticles are having potential in enhancing the rheological properties, microstructure, and mechanical strength of cement composites.