Open Access

Investigation on Flexural Behavior of HFRC with Partial Replacement of Nano Silica and Slag Cement

S. Venkat Raman, Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, TN, India G. Anusha, Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, TN, India A. Alex Livingston Raja, Department of Civil Engineering, Hindusthan College of Engineering and Technology, Coimbatore, TN, India S. Anandaraj, umailanandkrish@gmail.com
Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, TN, India K. Gowtham, Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, TN, India V. Gopi Krishnan, Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, TN, India T. Karthick 1Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, TN, India

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Abstract

This investigation directs to understand the flexural behavior of Hybrid Fiber Reinforced Concrete (HFRC) with incorporation of Nano silica and Portland slag cement. The mechanical properties of Concrete for the grade M50 is enhanced by combining different fibers such as glass, polypropylene, and steel. Specifically, we explore the replacement of these fibers for the cement at ratios of 2%, 3%, 4%, 5% and 6%. Findings indicate that it significantly improved flexibility, as well as micromechanical support. To assess the performance of the HFRC, Specimens are cast to undergo compression, Flexure and Spilt tensile using hybrid materials with a water-cement ratio of 0.40 and made to undergo normal water curing for a period of 7, 14, and 28 days. Our comprehensive analysis reveals that the inclusion of 5% fibers along with 5% of Nano silica as a partial replacement to fine aggregate exhibits superior ductility and flexural strength compared to other fiber ratios. The addition of latex admixture enhances the flexural strength of HFRC. Comparing the flexural behavior of HFRC to conventional concrete under applied loads the remarkable load-bearing capabilities of HFRC beams under flexural conditions are highlighted furthermore emphasizing the advantages of this innovative material for use in construction applications. The results were tabulated and comparative results were presented.

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