Performance enhancement of recycled steel fiber concrete using geometrically shaped synthetic aggregates and Taguchi-GRA approach

Abstract

The development of environmentally friendly recycled steel fiber reinforced concrete is being driven by the growing demand for building materials. Geometrically Shaped synthetic aggregates are used to make this kind of concrete system to improving the workability and durability of recycled steel fiber reinforced concrete is the aim of this study. The research uses a method known as Taguchi-Grey Relational Analysis with five factors are examined in the study: the amount of cement substituted, the binder’s composition, the water to cement ratio, the amount of fiber utilized, and the amount of synthetic aggregate. An array is used in the study to evaluate these concepts. 70% cement replacement, a binder blend with a water to cement ratio of 0.45, a modest amount of fiber, and a large replacement of synthetic aggregate are proven to be the optimal combination. The study reveals that the key factors influencing the concrete’s overall performance is the amount of cement substituted and the binder content. The developed concrete exhibits more robust, long-lasting, and high strain tolerance. Tests are used in the study to check for corrosion, and the results indicate that the new developed concrete is far superior with improved resistance to corrosion. Additionally, the study employs instruments to examine the concrete’s structure and concludes that it is stronger and denser. The study demonstrates a methodology to create high-performance recycled steel fiber reinforced concrete utilizing Taguchi-Grey Relational Analysis. Hence its produced from recycling materials, this type of concrete is environmentally sustainable and reduces the demand for natural aggregates.