Paper Key : IRJ************874
Author: Pratik Sitaram Matkar,Mihir Sunil Sankpal,Varsha Chandrakant Mozar,Omkar Umesh Joshi
Date Published: 03 Apr 2025
Abstract
Steel fiber-reinforced self-compacting concrete (SFRSCC) is a high-strength concrete with enhanced mechanical and durability properties. Steel fibers impart tensile strength, toughness, crack control, and reduce shrinkage and permeability. The effect of various steel fiber volume (1%, 2%, and 3%) on SCC workability, compressive strength, and flexural strength is examined in the present research. Workability tests like slump flow, V-funnel, and L-box show that higher steel fiber content reduces workability due to higher viscosity. Compressive and flexural strength tests, however, indicate a significant improvement in mechanical performance. The study suggests an optimal fiber dosage that balances the enhancement in strength with appropriate workability, often requiring superplasticizers or other admixtures. The study also establishes the effect of aspect ratio and fiber volume fraction on performance. SFRSCC is recommended for application in high-structural integrity and high-durability construction such as pavements, bridges, and industrial floors. The results confirm the application of steel fiber-reinforced concrete under extreme conditions, resulting in more durable and longer-lasting structures. Steel fiber-reinforced self-compacting concrete (SFRSCC) is a new and durable material with enhanced mechanical properties. Steel fibers improve impact resistance, tensile strength, crack control, and reduce shrinkage and permeability. This study examines the effect of various steel fiber contents (1%, 2%, and 3% by volume) on the workability, compressive strength, and flexural strength of SCC. Workability tests like slump flow, V-funnel, and L-box indicate that increased steel fiber content reduces workability due to higher viscosity. Compressive strength and flexural strength tests, however, indicate significant enhancement of the mechanical performance. The research indicates an ideal dosage of fibers that enhances strength without sacrificing workability, typically requiring superplasticizers or additional admixtures. The study further demonstrates the impact of volume fraction and aspect ratio of fibers towards overall performance. SFRSCC finds application in cases of high requirements of structural integrity and durability such as industrial floor, pavement, and bridges. The results confirm the viability of using steel fiber-reinforced concrete in severe environments, thus resulting in structures that are long-lasting and more durable.