Hybrid steel/glass fiber-reinforced self-consolidating concrete considering packing factor: Mechanical and durability characteristics

Ganta, Jyothi Kumari; Rao, M V Seshagiri; Mousavi, Seyed Sina; Reddy, V Srinivasa; Bhojaraju, Chandrasekhar

doi:10.1016/j.istruc.2020.09.042

Cited by 95 publications

(17 citation statements)

References 56 publications

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“…Various techniques have been established to study the behaviour of SCC [27]. Hence, every mix design of fibre reinforced SCC needs to be established by a series of trials to achieve various workability factors [46][47][48]. Thus there is a huge scope of research on developing fast setting early strength fibre reinforced SCC with various potential fine SCMs and ultrafine SCMs [7].…”

Section: Research Significancementioning

confidence: 99%

Fresh and Hardened Properties of Ternary Blended Fast Setting Early Strength Fibre Reinforced Self Compacting Concrete

Diddi¹,

Sharma²,

Srivastava³

et al. 2022

cea

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Section: Research Significancementioning

confidence: 99%

Fresh and Hardened Properties of Ternary Blended Fast Setting Early Strength Fibre Reinforced Self Compacting Concrete

Diddi¹,

Sharma²,

Srivastava³

et al. 2022

cea

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“…Hybrid fiber-reinforced concrete (HFRC) is a new trend in concrete research. When two or more kinds of fibers are added to concrete simultaneously, combining different types of fiber enhances the mechanical strength compared with single fiber reinforced concrete [ 25 , 26 , 27 , 28 , 29 , 30 ]. When steel fibers and polypropylene fibers are added to concrete, steel fiber provides higher strength, while polypropylene fiber can inhibit the growth of cracks in the concrete.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete

Wang

Syu

et al. 2021

Materials

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In this study, aramid fiber (Kevlar® 29 fiber) and carbon fiber were added into concrete in a hybrid manner to enhance the static and impact mechanical properties. The coupling agent presence on the surface of carbon fibers was spotted in Scanning Electron Microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) graphs. The carbon fiber with a coupling agent affected the mechanical strength of the reinforced concrete. At 1% fiber/cement weight percentage, the hybrid fiber-reinforced concrete (HFRC) prepared using Kevlar fiber and carbon fiber of 12 and 24 mm in length under different mix proportions was investigated to determine the maximum mechanical strengths. From the test results, the mechanical strength of the HFRC attained better performance than that of the concrete with only Kevlar or carbon fibers. Foremost, the mix proportion of Kevlar/carbon fiber (50–50%) significantly improved the compressive, flexural, and splitting tensile strengths. Under different impact energies, the impact resistance of the HFRC specimen was much higher than that of the benchmark specimen, and the damage of the HFRC specimens was examined with an optical microscope to identify slippage or rupture failure of the fiber in concrete.

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“…Researchers in the last few decades saw a sharp rise in the use of different fibres in concrete to increase its mechanical properties such as flexural strength, toughness, tensile strength and durability [ 20 , 21 , 22 , 23 , 24 ]. The fibres’ effectiveness usually depends on fibre, fibres geometry and orientation, volume fraction (V f ) and properties of fibres matrix in the concrete mixture [ 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Thermal Properties of Hybrid Fibre-Reinforced Concrete Exposed to Recurrent High Temperature and Aviation Oil

et al. 2021

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Over the years, leaked fluids from aircraft have caused severe deterioration of airfield pavement. The combined effect of hot exhaust from the auxiliary power unit of military aircraft and spilt aviation oils have caused rapid pavement spalling. If the disintegrated concreted pieces caused by spalling are sucked into the jet engine, they may cause catastrophic damage to the aircraft engine or physical injury to maintenance crews. This study investigates the effectiveness of incorporating hybrid fibres into ordinary concrete to improve the residual mechanical and thermal properties to prevent spalling damage of pavement. Three fibre-reinforced concrete samples were made with micro steel fibre and polyvinyl alcohol fibre with a fibre content of zero, 0.3%, 0.5% and 0.7% by volume fraction. These samples were exposed to recurring high temperatures and aviation oils. Tests were conducted to measure the effects of repeated exposure on the concrete’s mechanical, thermal and chemical characteristics. The results showed that polyvinyl alcohol fibre-, steel fibre- and hybrid fibre-reinforced concrete suffered a 52%, 40% and 26.23% of loss of initial the compressive strength after 60 cycles of exposure to the conditions. Moreover, due to the hybridisation of concrete, flexural strength and thermal conductivity was increased by 47% and 22%. Thus, hybrid fibre-reinforced concrete performed better in retaining higher residual properties and exhibited no spalling of concrete.

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Hybrid steel/glass fiber-reinforced self-consolidating concrete considering packing factor: Mechanical and durability characteristics

Cited by 95 publications

References 56 publications

Fresh and Hardened Properties of Ternary Blended Fast Setting Early Strength Fibre Reinforced Self Compacting Concrete

Fresh and Hardened Properties of Ternary Blended Fast Setting Early Strength Fibre Reinforced Self Compacting Concrete

Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete

Mechanical and Thermal Properties of Hybrid Fibre-Reinforced Concrete Exposed to Recurrent High Temperature and Aviation Oil

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