Assessing the effect of natural fiber on mechanical properties and microstructural characteristics of high strength concrete

Rajkohila, A.; Prakash Chandar, S.; Panruti thangaraj ravichandran,

doi:10.1016/j.asej.2024.102666

Ain Shams Engineering Journal

2024

DOI: 10.1016/j.asej.2024.102666

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Assessing the effect of natural fiber on mechanical properties and microstructural characteristics of high strength concrete

A. Rajkohila,

S. Prakash Chandar,

Panruti thangaraj ravichandran

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2024

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Cited by 4 publications

References 26 publications

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Experimental and numerical assessment of GFRP and synthetic fiber reinforced waste aggregate concrete members

Raza,

Salmi,

Arshad

et al. 2024

Ain Shams Engineering Journal

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Experimental and numerical assessment of GFRP and synthetic fiber reinforced waste aggregate concrete members

Raza,

Salmi,

Arshad

et al. 2024

Ain Shams Engineering Journal

View full text Add to dashboard Cite

Study on Mechanical Properties of Nano-TiC- and Nano-SiO2-Modified Basalt Fiber Concrete

Yang,

Wang,

Wang

et al. 2024

Buildings

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The load-bearing capacity of a building is influenced by the strength of the concrete. However, when faced with complex environments, ordinary concrete is not always adequate. The strength of concrete can be enhanced by incorporating additives into it. At this point, the study of adding basalt fiber (BF) and nano-SiO2 (NS) to concrete is pretty advanced. Still, research on the incorporation of nano-TiC (NT) into concrete is limited. In order to study the effect of NT, BF, and NS on the strength of concrete, in this paper, these materials were incorporated into concrete and NSF concrete was made by semi-dry mixing. And the concrete was analyzed for slump, compressive strength, splitting tensile strength, flexural strength, and modulus of elasticity. The optimization of the mechanical characteristics of concrete was conducted using response surface methodology (RSM), and the microstructure of concrete was used for analysis by scanning electron microscopy (SEM). To develop a thirst function optimization model based on NSF concrete, parallel experiments were used to verify the accuracy of the optimization results. The research findings show that NS, NT, and BF reduced the slump of concrete. Adding NT, NS, and BF in moderate amounts can enhance the mechanical characteristics of the concrete. The material’s optimal proportions for mixing were 0.85% for NT, 0.11% for BF, and 1.94% for NS. The optimized concrete has a maximum error of 9.03% in compressive strength, 9.30% in split tensile strength, and 9.82% in flexural strength.

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Influence of Manufactured Sand on Fresh Properties, Strength Properties and Morphological Characteristics of Self-Compacting Coconut Shell Concrete

Prasanth,

Chandar,

Gunasekaran

2024

Buildings

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This research examines the fresh properties, strength performance, and morphological analysis of self-compacting coconut shell concrete (SCCSC) blended with crushed coconut shell and manufactured sand (M-sand). Crushed coconut shell (CS) was used as a coarse aggregate (CA), and M-sand replaced river sand (R-sand) at 25%, 50%, 75%, and 100%. The study focused on the workability characteristics, mechanical behavior, and microstructural analysis of SCCSC. Experiments were performed on fresh and mechanical characteristics, including slump flow diameter, T500 slump flow time, L-Box blocking ratio, V-funnel and a wet sieving stability test. Mechanical characteristics include compressive, split tensile, flexural, impact resistance and bond strength. Utilizing M-sand develops the mechanical performance of SCCSC. The morphological characteristics, using scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), Fourier transform infrared (FTIR) and the X-ray diffraction (XRD) technique, were studied in this research work. The findings show that the addition of M-sand increases the concrete strength. The microstructural analysis demonstrates that adding different amounts of M-sand to SCCSC reduced the porosity and anhydrous cement percentage, although it increased calcium hydroxide and hydration products. The substitution of 100% M-sand at 28 days increased compressive strength by 3.79% relative to the reference SCCSC. Based on the findings, the mechanical strength of SCCSC containing M-sand significantly improved compared to the concrete with river sand.

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Assessing the effect of natural fiber on mechanical properties and microstructural characteristics of high strength concrete

Cited by 4 publications

References 26 publications

Experimental and numerical assessment of GFRP and synthetic fiber reinforced waste aggregate concrete members

Experimental and numerical assessment of GFRP and synthetic fiber reinforced waste aggregate concrete members

Study on Mechanical Properties of Nano-TiC- and Nano-SiO2-Modified Basalt Fiber Concrete

Influence of Manufactured Sand on Fresh Properties, Strength Properties and Morphological Characteristics of Self-Compacting Coconut Shell Concrete

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