Effect of nano silica on standard concrete - an Experimental approach
ROHIT SRIVASTAVA SRIVASTAVA
Paper Contents
Abstract
The mechanical properties of the concrete can be improved by adding nano particles. This research investigates the mechanical strength and durability of nanomaterial concrete using nano silicon dioxide as partial cement substitute. M45 grade concrete with 1% - 4% nano silicon dioxide and a water to cement ratio of 0.40 was tested. The optimal result was achieved with 4% nano silicon dioxide. Mechanical tests such as density, compressive, split tensile, flexural strength and microstructural anlaysis such as X ray diffraction and Scanning Electron Microscope was conducted.Concrete structures nowadays need to be more durable, mechanically strong, and have adequate ductility. Nanoparticles can be added to concrete to enhance its mechanical properties. The performance of both nanomaterial and ordinary cement concrete is examined in this study utilizing nano-titanium dioxide (TiO2) as a partial cement substitute. A standard concrete was selected that had a characteristic compressive strength of 29 MPa after 7 days. Nano SiO2 was used in various percentages to partially replace cement, specifically 1, 2, 3, and 4, while maintaining a consistent water-to-cement ratio of 0.38. After analysing various concrete mixtures, it was found that adding 2% nano TiO2 produced the greatest results over a wide range of parameters.
Copyright
Copyright © 2025 ROHIT SRIVASTAVA. This is an open access article distributed under the Creative Commons Attribution License.