Strength Enhancement of Concrete with Nano-Based Admixtures

Year : 2025 | Volume : 12 | Issue : 03 | Page :
    By

    Nishant Kumar,

  • Harsh Rathore,

Abstract

The integration of advanced nanomaterials such as nano-silica and nano-clay has emerged as a highly promising and innovative technique to significantly enhance the mechanical characteristics and long-term durability of conventional concrete. In this comprehensive study, the effects of nano-modification on various concrete properties, including workability, compressive strength, split tensile strength, and flexural behavior, were thoroughly evaluated through a systematic experimental program. A series of concrete mix designs incorporating varying proportions of nano-silica and nano-clay were carefully prepared and subjected to testing after different curing durations of 7, 28, 60, and 90 days. The slump test results revealed that the workability of nano-modified concrete showed considerable improvement, particularly with the use of superplasticizers, which increased the workability by up to 50% compared to control mixes. The compressive strength results exhibited a notable enhancement, with a maximum improvement of 25% observed at 90 days of curing, where the highest strength recorded was 89.25 MPa in the optimized mix designated as M24. Furthermore, the split tensile strength also demonstrated significant gains, with an increase of up to 32%, reaching a peak value of 5.90 MPa at 28 days. Similarly, the flexural strength results showed substantial improvement, especially in mixes containing higher dosages of nanomaterials, indicating enhanced load-bearing capabilities. Microstructural analysis confirmed that the addition of nanomaterials contributed to a refined and densified internal matrix structure within the concrete, leading to superior particle bonding, reduced porosity, and more uniform load distribution. Overall, the findings of this research strongly suggest that nano-modified concrete represents a technically feasible and sustainable alternative to traditional concrete for high-performance structural applications, offering remarkable improvements in strength, durability, and long-term performance under various loading and environmental conditions.

Keywords: Nano-silica, Nano-clay, Compressive strength, Workability, Flexural strength, Durability, High-performance concrete

[This article belongs to Journal of Structural Engineering and Management ]

How to cite this article:
Nishant Kumar, Harsh Rathore. Strength Enhancement of Concrete with Nano-Based Admixtures. Journal of Structural Engineering and Management. 2025; 12(03):-.
How to cite this URL:
Nishant Kumar, Harsh Rathore. Strength Enhancement of Concrete with Nano-Based Admixtures. Journal of Structural Engineering and Management. 2025; 12(03):-. Available from: https://journals.stmjournals.com/josem/article=2025/view=234949


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Regular Issue Subscription Original Research
Volume 12
Issue 03
Received 04/04/2025
Accepted 17/05/2025
Published 19/07/2025
Publication Time 106 Days
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