Effect of Partial Replacement of Slag and Nano Silica Infused Slag on Properties of Concrete

Prakash Mallappa Munnoli1 , Tejashwini R. Pattar2 , Jyoti S. Garawad3 
1,2,3S D M College of Engineering and Technology, Dharwad

E-mail: munnolipm@gmail.com

Abstract: Investigations were carried out on the changes in properties of concrete when steel slag is used in concrete in its normal form and after modifying its properties by infusing it with nano silica. The sand is replaced by steel slag and modified steel slag by 10%, 20% and 30% in M30 grade concrete. Tests results on compressive strength and workability of concrete revealed that, compressive strength of concrete cubes after 28 days increased by 25.4%, 26.4% and 45.2% for 10%, 20% and 30% respectively after replacing sand by steel slag. After modification of steel slag properties by infusing it with nano silica, the 28 days compressive strength was observed to be increased by 38.19%, 35.80% and 27.89% for 10%, 20% and 30% as compared to traditional concrete mix respectively after replacement. Infusing steel slag with nano silica increased the compressive strength of concrete mix by 20.17%, 25.74% and 49.64% for 10%, 20% and 30% respectively when compared to normal steel slag concrete mix. It was also observed that using steel slag in concrete mix also influences on water consumption in concrete mix. Workability tests conducted using 0.45 and 0.5 w/c ratio and the inference was that the workability increased with the increase in percentage of steel slag but workability decreases with the increase in percentage of modified steel slag.

Research paper link: http://dspace.chitkara.edu.in/jspui/bitstream/123456789/8/1/jotitt.2017.51005.pdf

DOI: http://doi.org/10.15415/jotitt.2017.51005

Comments

  1. Tanbin4 April 2025 at 21:18


    Your analysis on the effect of partial replacement of slag in construction materials was both comprehensive and enlightening. I appreciated the detailed approach you took in examining how incorporating slag can influence the strength and durability of concrete mixes. Your data-driven insights not only highlight the potential benefits in terms of sustainability and cost-effectiveness but also underscore the importance of quality control in modern construction practices. This type of research is invaluable for professionals looking to innovate while maintaining high standards. For those interested in remodeling or upgrading their spaces with advanced construction techniques, I highly recommend checking out R for Remodelers for their expertise in blending innovation with exceptional craftsmanship.

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