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Advances in Concrete Construction Volume 9, Number 4, April 2020 , pages 387-395 DOI: https://doi.org/10.12989/acc.2020.9.4.387 |
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Development of fiber reinforced self-compacting concrete (FRSCC): Towards an efficient utilization of quaternary composite binders and fibers |
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Roman Fediuk, Mohammad A. Mosaberpanah and Valery Lesovik
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| Abstract | ||
| This study has been carried out in two-phases to develop Fiber Reinforced Self-Compacting Concrete (FRSCC) performance. In the first phase, the composition of the quaternary composite binder compromised CEM I 42.5N (58-70%), Rice Husk Ash (25-37%), quartz sand (2.5-7.5%) and limestone crushing waste (2.5-7.5%) were optimized. And in the second phase, the effect of two fiber types (steel brass-plated and basalt) was investigated on the SCC optimized with the optimum CB as disperse reinforcement at 6 different ratios of 1, 1.2, 1.4, 1.6, 1.8, and 2.0% by weight of mix for each type. In this study, the theoretical principles of the synthesis of self-compacting dispersion-reinforced concrete have been developed which consists of optimizing structure-formation processes through the use of a mineral modifier, together with ground crushed cement in a vario-planetary mill to a specific surface area of 550 m2 / kg. The amorphous silica in the modifier composition intensifies the binding of calcium hydroxide formed during the hydration of C3S, helps reduce the basicity of the cement-composite, while reducing the growth of portlandite crystals. Limestone particles contribute to the formation of calcium hydrocarbonate and, together with fine ground quartz sand; act as microfiller, clogging the pores of the cement. Furthermore, the results revealed that the effect of fiber addition improves the mechanical properties of FRSCC. It was found that the steel fiber performed better than basalt fiber on tensile strength and modulus of elasticity; however, both fibers have the same performance on the first crack strength and sample destruction of FRSCC. It also illustrates that there will be an optimum percentage of fiber addition. | ||
| Key Words | ||
| FRSCC; quaternary composite binders; fibers; mechanical properties; first crack; destruction | ||
| Address | ||
| Roman Fediuk: School of Engineering, Far Eastern Federal University, Vladivostok, Russian Federation Mohammad A. Mosaberpanah: Department of Civil Engineering, Cyprus International University (CIU), Nicosia, North Cyprus, Turkey Valery Lesovik: Building Materials Science, Products and Structures, Belgorod State Technological University, Belgorod, Russian Federation | ||
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