Study on the Effect of Nanosilica on Mechanical Properties of Concrete - A Review

D. S. V. S. M. R. K. Chekravarty*, Mallika Alapati**, P. Sravana***, Srinivasa Rao****
* Research Scholar, Jawaharlal Nehru Technological University College of Engineering Hyderabad and Associate Professor, Marri Laxmanreddy Institute of Technology Management, Hyderabad, Telangana, India.
** Department of Civil Engineering, Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.
***-**** Department of Civil Engineering, Jawaharlal Nehru Technological University College of Engineering Hyderabad, Telangana, India.
Periodicity:December - February'2020
DOI : https://doi.org/10.26634/jste.8.4.17053

Abstract

The usage of nano-materials in concrete is gaining increasing attention in the construction industry. Studies have shown that concrete containing nanoparticles has demonstrated increased strength and durability. The use of large quantity of cement product increases CO emissions and also consequents the greenhouse effect. The use of nano-materials reduces the cement content in the concrete mix and hence reduces the greenhouse effect. In the present paper, the influence of nano-silica on mechanical properties of concrete is studied by replacing the cement with various percentages of nano-silica. Experimental investigations are being conducted with nano-silica as a partial replacement for cement in the range of 1%, 2%, 3%, 4% and 5% for concrete of grades M40, M50 and M60 mixes, respectively. The optimum dosage of replacement of nano-silica was found to be 3%, beyond which the results for the mechanical properties were not encouraging. The durability is also tested. The results of the tests are analyzed, discussed and presented.

Keywords

Concrete, Nano-Silica, Compressive Strength, Flexural Strength, Split Tensile Strength, Durability, Optimum Dosages of nano-silica.

How to Cite this Article?

Chekravarty, D. S. V. S. M. R. K., Alapati, M., Sravana, P., & Rao, S. (2020). Study on the Effect of Nanosilica on Mechanical Properties of Concrete - A Review. i-manager's Journal on Structural Engineering, 8(4), 41-49. https://doi.org/10.26634/jste.8.4.17053

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