Civil Engineering and Architecture Vol. 12(2), pp. 866 - 872
DOI: 10.13189/cea.2024.120215
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Effect of Nano-Silica on the Mechanical Characteristics of Ternary Blended Concrete

Myakala Vamshikrishna ^*, Ilango Sivakumar
Department of Structural Engineering, Annamalai University, Chidambaram, India

ABSTRACT

The imperative to reduce Carbon dioxide (CO₂) emissions, a principal driver of global warming and climate change, has prompted a paradigm shift in construction materials research. In this context, the utilization of mineral compounds as an innovative alternative to traditional cement is gaining increasing significance. This study introduces a novel approach to concrete production, emphasizing the environmental and sustainability advantages of replacing conventional constituents with diverse industrial by-products. Recent years have witnessed substantial interest in the integration of Supplementary Cementing Materials (SCMs) and alternative fine aggregates in concrete formulation. The core objective of this research is to investigate the compressive behaviour of ternary blended concrete incorporating nano-silica, M-sand, and fly ash as partial substitutes for cement and fine aggregate. The experimental methodology involves the development of multiple concrete compositions, wherein the nano-silica content varies while maintaining a consistent 30% fly ash and 100% M-sand ratio. The test specimens undergo a comprehensive evaluation of their compressive strength. The findings of this study reveal a significant breakthrough in enhancing the properties of ternary blended concrete through the incorporation of nano-silica. This innovative approach, blending nano-silica with other SCMs, holds the potential to revolutionize the development of high-performance, high-strength concrete. As the research suggests, further exploration is crucial to optimize ingredient proportions, curing conditions, and the long-term performance of ternary blended concrete enhanced with nano-silica. Notably, the results indicate that the addition of nano-silica substantially accelerates early-age strength development in concrete. This phenomenon can be attributed to its pozzolanic reactivity and its capacity to facilitate cement hydration. Additionally, the substitution of natural river sand with M-sand demonstrates favourable outcomes, particularly in terms of workability and strength characteristics. In sum, this study underscores a pioneering approach to sustainable concrete design, presenting the potential for substantial reductions in CO₂ emissions, while simultaneously achieving superior material performance.

KEYWORDS
Fly Ash, Ternary Blended Concrete, Colloidal Nano Silica, Cement, Admixtures

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Myakala Vamshikrishna , Ilango Sivakumar , "Effect of Nano-Silica on the Mechanical Characteristics of Ternary Blended Concrete," Civil Engineering and Architecture, Vol. 12, No. 2, pp. 866 - 872, 2024. DOI: 10.13189/cea.2024.120215.

(b). APA Format:
Myakala Vamshikrishna , Ilango Sivakumar (2024). Effect of Nano-Silica on the Mechanical Characteristics of Ternary Blended Concrete. Civil Engineering and Architecture, 12(2), 866 - 872. DOI: 10.13189/cea.2024.120215.