Strength and Durability Characteristics of Steel Fibre Reinforced Concrete with Mineral Admixtures
N. Sanjeev1, K. Harish Kumar2, Kaza Prem Rakshit Kumar3

1Dr. N. Sanjeev*, Department of Civil Engineering, Gokaraju Rangraju Institute of Engineering and Technology (GRIET) Hyderabad, Telangana, India.
2K. Harish Kumar,  Department of Civil Engineering, GRIET Hyderabad, Telangana, India.
3Kaza Prem Rakshit Kumar, Department of Civil Engineering, GRIET Hyderabad, Telangana, India.
Manuscript received on September 12, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 3893-3897 | Volume-9 Issue-1, October 2019 | Retrieval Number: A1223109119/2019©BEIESP | DOI: 10.35940/ijeat.A1223.109119
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Abstract: The present investigation is carried out to study the strength and durability characteristics of steel fibre reinforced concrete, by replacing Ordinary Portland cement with Fly Ash, Ground Granulated Blast Furnace Slag (GGBS) and Metakaolin. In this study, cement is replaced by 30% and 40% with Fly Ash, GGBS and Metakaolin for M30 and M35 grades of concrete. Steel fibres @ 1% by weight of binder is used in all the mixes. Strength characteristics like compressive strength and split tensile strength are tested at 7 days and 28 days age. Additionally, durability tests such as water absorption and Sorptivity tests are conducted after 28days curing. The test results have shown that 30% replacement is optimum for strength criteria. And when metakaolin is used with fly ash, durability properties were improved and workability reduced.
Keywords: Concrete, Fly Ash, GGBS, Steel fiber, M-Sand, Compressive Strength, Sorptivity and Water Absorption.