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ISSN 2063-5346
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EVALUATION OF MECHANICAL CHARACTERISTICS OF HIGH STRENGTH HYBRID FIBER REINFORCED SCC

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Maneeth.P.D, Dr.ShreenivaReddy Shahapur, Shivaraj S J
» doi: 10.31838/ecb/2023.12.6.73

Abstract

A special kind of concrete called high-performance hybrid fibre reinforced self compacting concrete (HSHFRSCC) which inturn capable of withstanding loads which normal strength concrete (NSC) cannot. It can also speed up construction because of early strength and better performance. The current study attempts to develop M55 grade of HSHFRSCC mixes in accordance with IS 10262:2019. Many tests for HSHFRSCC mixtures were conducted, using silica fumes and GGBS as fillers and marginal materials as binders. The maximum size of coarse aggregates was fixed at 12.5 mm, while the water content, fine to coarse aggregate ratio, and super plasticizer dose were all maintained constant.The percentages of Silica fumes and GGBS (0% to 30%) replaced by weight of cement are varied throughout the process. When using GGBS and Silica fumes in place of cement, the water content is also maintained constant by adjusting the water to cement ratio correspondingly. This study aims to develop hybrid fibre-reinforced composition by inducting steel and polypropylene fibers (0%-2%) by weight of cement in the mix. The test result demonstrates that HSHFRSCC mixes can be created using IS 10262:2019 for the specified grade of concrete, and that these mixes satisfied the requirements for both fresh and hardened qualities. Also, the statistics show that adding hybrid fibre and substituting the GGBS and Silica fumes is more efficient. Sample L5 had the highest value for both compressive and tensile strength, and it also had the highest value for flexural strength.

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