Effects of steel fibre type and dosage on abrasion resistance of concrete against debris flow

Wu, Fei; Yu, Qingliang; Chen, Xiaoqing

doi:10.1016/j.cemconcomp.2022.104776

Cited by 24 publications

(2 citation statements)

References 38 publications

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“…Steel fiber is mainly made of cold-drawn steel wire, steel plate, or other forms of steel, and its cross-sectional shape is mainly round, square, and rectangular [ 53 , 54 ]. Steel fiber is widely added to geopolymer concrete due to its high density, high tensile strength, and low cost [ 55 ].…”

Section: Types Of Fibers For Geopolymer Concrete Performance Enhancementmentioning

confidence: 99%

The Influence of Fiber on the Mechanical Properties of Geopolymer Concrete: A Review

et al. 2023

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Geopolymer is widely used as a supplement to cementitious composites because of its advantages of low carbon and environmental protection, and geopolymer concrete is also broadly used in practical engineering. In recent years, geopolymer concrete has attracted increasing interest owing to its superior mechanical properties, and a series of research results have been obtained. In this paper, from the preparation of geopolymer concrete, based on the characteristics that geopolymer concrete is brittle and easy to crack, the types and basic properties of fibers to enhance the toughness of concrete are analyzed, the advantages and disadvantages of different fibers used as a material to enhance the toughness of concrete are summarized, and we review the effects of type, shape, volume rate, aspect ratio, and hybrid fiber combinations on the static mechanical properties. The results indicate that fibers have significant potential to enhance the compressive strength, splitting tensile strength, flexural strength, and fracture toughness of geopolymer concrete, and the optimal fiber volume rate seems to be related to the fiber type. Whereas the effect of aspect ratio and hybrid fiber combinations on the properties of geopolymer concrete seems to be obvious. This paper reviews the influence of fiber on the basic mechanical properties of geopolymer concrete, which provides a solid foundation to promote the further development and application of the research on the toughness of fiber-reinforced geopolymer concrete and provides recommendations for future research.

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Section: Types Of Fibers For Geopolymer Concrete Performance Enhancementmentioning

confidence: 99%

The Influence of Fiber on the Mechanical Properties of Geopolymer Concrete: A Review

et al. 2023

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“…Researchers commonly enhance the wear resistance of concrete pavement through means such as improving aggregate performance [ 3 , 4 , 5 ], surface treatments [ 6 , 7 ], adding fibers [ 8 , 9 , 10 ], and incorporating supplementary cementitious materials [ 11 , 12 ]. Among existing methods, the addition of SF is a relatively practical and environmentally friendly approach.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Properties of Composite Modified Mortar with Styrene–Butadiene Rubber Latex and Silica Fume

Yan,

Wang,

et al. 2024

Polymers

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To solve the problem of the poor abrasion resistance of concrete pavement surface mortar, this study substituted cement with equal amounts of styrene–butadiene rubber (SBR) latex and silica fume (SF) to investigate the effects of organic/inorganic material composite modification on the fluidity, drying shrinkage, mechanical properties, and abrasion resistance of cement mortar. Also in this study, the microstructure, product, and pore structure characteristics of the composite modified cement mortar were investigated using scanning electron microscope (SEM), X-Ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and the Brunauer–Emmett–Teller (BET) method. This research found that the sole substitution of SF negatively impacted the mortar’s fluidity and drying shrinkage yet enhanced its mechanical strength and abrasion resistance; the incorporation of SBR latex improved fluidity, reduced shrinkage, and increased flexural strength but adversely affected the compressive strength of the mortar. Additionally, the enhancement of the mortar’s abrasion resistance with SBR latex was significantly greater than that with SF. When SBR latex and SF were used together as substitutes, the latex struggled to offset the negative impact of SF on mortar fluidity but effectively reduced shrinkage; SF compensated for the detrimental effect of the latex on compressive strength. Moreover, the primary role in enhancing the mortar’s abrasion resistance was played by the latex. Microscopic tests showed that SBR latex and SF could increase the content of calcium silicate hydrate (C-S-H) gel, inhibit the formation of ettringite (AFt) and reduce carbonation, refine the pore size of cement mortar, and effectively improve the microstructure of mortar.

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Performance Evaluation of Ultra-high Performance Concrete (UHPC) and Ultra-high Performance Fibre Reinforced Concrete (UHPFRC) in Pavement Applications

Rambabu,

Sharma,

Akbar

2024

Arab J Sci Eng

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Effects of steel fibre type and dosage on abrasion resistance of concrete against debris flow

Cited by 24 publications

References 38 publications

The Influence of Fiber on the Mechanical Properties of Geopolymer Concrete: A Review

The Influence of Fiber on the Mechanical Properties of Geopolymer Concrete: A Review

A Study on the Properties of Composite Modified Mortar with Styrene–Butadiene Rubber Latex and Silica Fume

Performance Evaluation of Ultra-high Performance Concrete (UHPC) and Ultra-high Performance Fibre Reinforced Concrete (UHPFRC) in Pavement Applications

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