Published Online:April 2025
Product Name:The IUP Journal of Structural Engineering
Product Type:Article
Product Code:IJSE020425
DOI:10.71329/IUPJSE/2025.18.2.16-27
Author Name:Basavraj Saunshi, Sudeep Joshi and Shivani S Naik
Availability:YES
Subject/Domain:Engineering
Download Format:PDF
Pages:16-27
Ultra high performance fiber reinforced concrete (UHPFRC) represents a significant advancement in concrete technology, offering exceptional mechanical properties surpassing traditional concrete mixes. Unlike traditional concrete, which may fail abruptly under shear loading, UHPFRC exhibits enhanced ductility and toughness, allowing it to better distribute and resist shear stresses. This property makes UHPFRC particularly suitable for structural elements subjected to dynamic loads, such as beams, columns, and bridge decks, where flexural resistance is crucial for long-term durability and safety. Currently, the ultimate shear capacity design of UHPFRC beams relies on empirical or semi-empirical methods involving approximations, which are not always reliable and have limited scope. This paper aims at verifying the empirical equation between tensile strength and shear capacity of UHPFRC with different proportions of steel fiber. To achieve this, UHPFRC beams were cast and subjected to four-point and three-point loading tests until failure. A total of twelve specimens were cast, including shear tests on three specimens, flexural tests on three specimens, tensile tests on three specimens, and compressive tests on three 100 x 100 x 100 mm cubes for each steel fiber proportion. Experimental results were compared to French codes to provide insights into UHPFRC performance.
Over the decades, the advancement of construction materials has been essential for the progress of civil engineering.