Uniaxial compression mechanical property and fracture behavior of hybrid inorganic short mineral fibers reinforced cement-based material

Yang, Yuanyi; Zhou, Qi; Li, Xingkui; Lum, Galen Chit; Deng, Yi

doi:10.1016/j.cemconcomp.2019.103338

Cited by 32 publications

(18 citation statements)

References 38 publications

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“…46,62 Different models are proposed by numerous researchers for prediction of stress-strain response from the experimental results. 34,53,63 In this study, four analytical models are used to predict the compressive behavior of HFRC.…”

Section: Experimental Testing and Modeling Proceduresmentioning

confidence: 99%

“…32 Previous studies showed that the addition of basalt fiber had considerably enhanced the mechanical properties and toughness of composites and performed as a compatible reinforcing fiber for cementitious composites. [34][35][36][37] Steel fibers showed higher thermal conductivity and thermal stability with crack resistance phenomena against thermal stress even under high temperature because of effective heat transfer phenomena. 26 The steel fiber provide the bridging effect in fiber reinforced concrete over large temperature range and does not melt at temperature less than 1300 C. 38 In addition, the calcium carbonate (CaCO 3 ) whisker as a micro-fiber performed well at micro-level and decomposed at 800 C to 900 C in composites.…”

mentioning

confidence: 99%

“…[40][41][42] The hybrid fiber reinforced composites are designed in a mode that provide the synergetic effect with maximum advantage taken from each type of fiber under mechanical loading ultimately offer better mechanical characteristics. 34,[43][44][45] The multi-scale hybrid fibers play an important role in bridging the multi-level cracking. For micro crack, the one third of fiber length can be taken as the allowable crack limit with assumption of one third of fiber length as a development length.…”

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confidence: 99%

“…46 Nowadays, the prediction of mechanical behavior from analytical models gained a lot of consideration from researchers and turn out to be of great importance for concrete composites. 34,[47][48][49] The experimental work is more time-consuming and expensive and development of analytical models for predicting structural response is beneficial. 50,51 Various analytical models are considered to calculate the behavior of compressive stress-strain curve of HFRC.…”

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confidence: 99%

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Experimental and analytical study of hybrid fiber reinforced concrete prepared with basalt fiber under high temperature

et al. 2021

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The usage of mineral basalt fibers is a relatively novel and popular topic nowadays due to its abundant availability, low cost, and higher temperature resistance. In addition, the establishment of analytical models is beneficial because the experimental work is more time-consuming and expensive. Therefore, in this study, the inorganic mineral basalt fibers with different length and content in hybrid fiber concrete composite are investigated to assess its suitability at room temperature and under high temperature. In addition, a new analytical model for stress-stain curve of hybrid fiber concrete composite is developed and compared with the models in previous studies.The microstructure examination is also conducted after exposure to high temperature to explore the fiber morphology and interaction with matrix. The substantial improvement was indicated by addition of basalt fiber in hybrid fiber concrete for stress-strain response, peak stress, elastic modulus, peak strain, ultimate stain, toughness, and specific toughness at room temperature and at 850 C. It was revealed that the basalt fiber had demonstrated overall good appropriateness in the hybrid fiber concrete composite for all the compressive properties. Moreover, the proposed analytical model could be useful for prediction of analytical behavior from experimental data under high temperature for the research and design purposes.

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Section: Experimental Testing and Modeling Proceduresmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Experimental and analytical study of hybrid fiber reinforced concrete prepared with basalt fiber under high temperature

et al. 2021

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“…JIM is another technique used to evaluate the fracture energy ( GF ) of composites 51 . The GF according to JIM can be expressed as per Equations 10 and 11.…”

Section: Obtained Parameters Calculation Methodsmentioning

confidence: 99%

Efficiency of basalt fiber length and content on mechanical and microstructural properties of hybrid fiber concrete

Khan

Cao

Xie

et al. 2021

Fatigue Fract Eng Mat Struct

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Recently, multiscale hybrid fiber‐reinforced concrete is used instead of single fiber‐reinforced concrete to achieve better performance with hybrid fiber at their respective scale size. In this study, the fracture properties of multiscale hybrid fiber‐reinforced concrete are considered. This work aims to evaluate the effect of different basalt fiber (BF) lengths and contents on fracture parameters of fly ash–CaCO3 whisker–steel fiber‐reinforced concrete (FCSF). The measured fracture parameters are initial fracture toughness (KICini), unstable fracture toughness ( KICuns), fracture energy (GF) by various methods, and gain ratio (GR) of fracture parameters. Furthermore, the cracking mechanism and microstructural study are discussed. The different considerable amount of enhancement was indicated by FCSF‐BF for fracture characteristics as compared to that of plain concrete (PC).

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Hybridization effect on the mechanical properties of basalt fiber reinforced ZnO modified epoxy composites

et al. 2022

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This paper discusses the fabrication of nano ZnO filled epoxy/basalt fiber composites and investigates the effect of such hybridization on the mechanical properties of the composites. The epoxy resin is modified by the addition of ZnO nanofiller in different wt.% (1-5 wt%). The dispersion of the nanofiller within the epoxy resin is brought about by sonication technique. The composites are fabricated through wet layup followed by curing under compression molding. To ascertain the effect of resin modification, flexural and tensile strengths are evaluated. The inter-laminar shear strength (ILSS) is determined to identify the compatibility of the ZnO nanofiller with the epoxy and the basalt fibers. The improvement in the ILSS indicates thorough wettability being achieved between all the composite components. The addition of ZnO nanofiller improved the flexural strength, while there was no remarkable improvement in the tensile strength of the ZnO modified epoxy/baslat (BEZ) composite. Maximum improvement in the strengths is observed for BEZ2 composite with 2 wt% of ZnO nanofiller. For BEZ2 composite, the flexural and tensile strength increased by about 22% and 9.78% respectively in comparison to unfilled BEZ0 composite. The ILSS for BEZ2 composite improved by 21.74% in comparison to BEZ0 composite. In addition, more than 2 wt% addition of the ZnO nanofiller resulted in the reduction of flexural, tensile and ILSS of the composite due to agglomeration. Such agglomeration resulted in the failure of the composite due to delamination, matrix cracking and fiber fracture as observed through scanning electron microscopy images of the fractured composites.

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Uniaxial compression mechanical property and fracture behavior of hybrid inorganic short mineral fibers reinforced cement-based material

Cited by 32 publications

References 38 publications

Experimental and analytical study of hybrid fiber reinforced concrete prepared with basalt fiber under high temperature

Experimental and analytical study of hybrid fiber reinforced concrete prepared with basalt fiber under high temperature

Efficiency of basalt fiber length and content on mechanical and microstructural properties of hybrid fiber concrete

Hybridization effect on the mechanical properties of basalt fiber reinforced ZnO modified epoxy composites

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