Comparing Mechanical Characterization of Carbon, Kevlar, and Hybrid-Fiber-Reinforced Concrete under Quasistatic and Dynamic Loadings

نویسندگان

چکیده

Concrete is a brittle material due to its poor tensile strength; consequently, concrete tends crack or peel under an applied external load. Previous studies have investigated the effect of incorporating fiber into concrete, which can improve strength. In this study, static and dynamic mechanical characteristics three types fiber-reinforced (FRC) were examined: carbon-fiber-reinforced (CFRC); Kevlar-fiber-reinforced (KFRC); combination both, known as carbon/Kevlar-hybrid-fiber-reinforced (HFRC). This study created specimens by pneumatically dispersing carbon Kevlar fibers mixing them with cement comprise 1% weight. The mixture was then combined aggregates water form specimens. When compared benchmark specimens, it found that compressive strength CFRC, KFRC, HFRC increased about 19% 50%, bending increase 8% 32%, splitting 4% 36%. Specifically, made 24 mm displayed most significant in state. Furthermore, showed superior resistance impact across various energies, showing highest resistance. inclusion split Hopkinson pressure bar (SHPB) test demonstrated notable maximum strength, particularly case 12 specimen.

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ژورنال

عنوان ژورنال: Buildings

سال: 2023

ISSN: ['2075-5309']

DOI: https://doi.org/10.3390/buildings13082044