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@article{205401,
        author = {tanmay khandekar and Ritesh Koli and Manish Sarnayak and Virendrasing Rajput},
        title = {Effect of Steel Fibre Length Variation on Compressive Strength of Ultra High-Performance Concrete Using Ultratech Ready Dry Mix},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {1},
        pages = {6343-6346},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=205401},
        abstract = {Ultra High-Performance Concrete (UHPC) offers compressive strengths exceeding 120 MPa and superior durability when reinforced with steel fibres. This study investigates the influence of steel fibre length variation specifically 10 mm, 25 mm, and 50 mm on the compressive strength development of UHPC prepared using Ultratech ready dry mix. Cube specimens (70×70×70 mm for 10 mm and 25 mm fibres; 100×100×100 mm for 50 mm fibres) were cast at Raina Industries Pvt. Ltd. and tested at 7, 14, and 28 days as per IS 516: Part 1: Sec 1: 2021 at Aqua Lab, Mira Road. All mixes exceeded the M-120 design grade at 28 days. At 28 days, 10 mm fibres achieved the highest average compressive strength of 127.2 N/mm², followed by 25 mm fibres at 125.4 N/mm², and 50 mm fibres at 123.3 N/mm². The results indicate that fibre length has a moderate but measurable influence on compressive performance, with shorter fibres offering better matrix dispersion and compressive efficiency, while longer fibres improve post-cracking toughness and energy absorption.},
        keywords = {Compressive Strength; Fibre-Reinforced Concrete; M-120 Grade; Steel Fibre Length; UHPC; Ultratech Dry Mix},
        month = {June},
        }