Serviceability performance of FRC columns under imposed displacements: An experimental study

Groli, Giancarlo; Caldentey, Alejándro Pérez; Marchetto, Francesco; Fernández, Freddy Aríñez

doi:10.1016/j.engstruct.2015.07.035

Cited by 9 publications

(4 citation statements)

References 15 publications

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“…The incorporation of fibres in cement-based composites allows increasing the fracture energy of the matrix [1] by providing post-cracking strength and, hence, improving the ductility [2], cracking control [3][4][5], and fatigue [6,7]; fire and impact resistance can also be enhanced depending on the type of fibres used [8][9][10]. These improvements enable the possibility of a partial or even total substitution of the traditional steel bars by structural fibres [11].…”

Section: Introductionmentioning

confidence: 99%

Structural response of a fibre reinforced concrete pile-supported flat slab: full-scale test

Aidarov

Mena

Fuente

2021

Engineering Structures

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Section: Introductionmentioning

confidence: 99%

Structural response of a fibre reinforced concrete pile-supported flat slab: full-scale test

Aidarov

Mena

Fuente

2021

Engineering Structures

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“…Furthermore, Mastali [9] showed that replacing steel fibers with 15-30% recycled steel significantly increased the flexural strength and fracture index. Groli [10] indicated that the use of 1% recycled steel fibers effectively enhanced SCC's crack resistance. Meng and Khayat [11] demonstrated that the concrete shrinkage decreased by 30% when increasing the steel fiber content from 2% to 5%, while the flow time through the V funnel increased by 61.5%.…”

Section: Introductionmentioning

confidence: 99%

Influence of recycled steel fiber on the properties of self-compacting concrete with high fly ash content

Cuong

2024

JSTCE

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The recycled steel fibers from waste steel cables have properties suitable for enhancing the load-bearing capacity, impact resistance, and shrinkage reduction of Self-Compacting Concrete (SCC). The use of a high content of fly ash in SCC reduces production costs and is environment friendly by minimizing the amount of cement in the mix. This article presents the experimental research results on the influence of the content of recycled steel fibers on the properties of high-fly-ash SCC. The research utilized recycled steel fibers from elevator steel cables with volume percentages of 0%, 0.5%, 1% and 1.5% respectively in SCC, with a fly ash content in the SCC mix of 50% by volume of powder. The evaluated properties included workability, plastic shrinkage, drying shrinkage compressive strength, and tensile strength. The results indicate that using recycled steel fibers with a maximum content of 1% enables the production of SCC that meets European standards for workability. In addition, when comparing SCC with 0.5% and 1% recycled steel fiber content to control SCC samples (without steel fibers), the compressive strength of SCC increased by 5.04% and 7.56% respectively, the tensile strength increased by 2.99% and 5.97% respectively, plastic shrinkage decreased by 27.34% and 30.47% respectively, and 28-day drying shrinkage decreased by 3.2% and 4.6% respectively. Using recycled steel fibers combined with high-volume fly ash is a reasonable solution to save production costs and be environmentally friendly. Additionally, this solution not only improves the compressive and tensile strength but also limits plastic and drying shrinkage deformations of SCC. As a result, the durability of SCC is enhanced.

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“…Fiber-reinforced concrete (FRC) is one of several new types of innovative concretes that can be used for structural purposes in accordance with a number of national and international codes, guidelines, and design recommendations [ 1 , 2 , 3 , 4 , 5 , 6 ]. The incorporation of fibers in cement-based composites allows the partial or even total substitution of traditional reinforcement (reinforcing steel bars) with a positive effect on the fracture energy of the matrix [ 7 ], cracking control [ 8 , 9 , 10 , 11 , 12 ], fire resistance [ 13 , 14 , 15 ], fatigue [ 16 , 17 ], redistribution capacity [ 18 , 19 , 20 , 21 ], and impact resistance [ 22 , 23 , 24 , 25 ]. As a result, the application of FRC is already observed in a multitude of structural elements, such as precast tunnel segments [ 26 , 27 , 28 ], elevated flat slabs [ 29 , 30 , 31 ], reinforced earth-retaining walls [ 32 ], and ground-supported flat slabs for industrial applications [ 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Low Temperatures on Flexural Strength of Macro-Synthetic Fiber Reinforced Concrete: Experimental and Numerical Investigation

Aidarov¹,

Nogales²,

Reynvart³

et al. 2022

Materials

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Fiber-reinforced concrete (FRC) is an attractive alternative to traditional steel bar-reinforced concrete structures, as evidenced by the constantly increasing market consumption of structural fibers for this purpose. In spite of significant research dedicated to FRC, less attention has been given to the effects of low temperatures on the mechanical properties of FRC, which can be critical for a variety of structural typologies and regions. With this in mind, an experimental program was carried out to assess the flexural behavior of macro-synthetic fiber-reinforced concrete (MSFRC) at different temperatures (from 20 °C to −30 °C) by means of three-point bending notched beam tests. The tested MSFRCs were produced by varying the content of polypropylene fibers (4 and 8 kg/m3). The results proved that the flexural strength capacity of all MSFRCs improved with decreasing temperature. Finite element analyses were then used to calibrate constitutive models following fib Model Code 2010 guidelines and to formulate empirical adjustments for taking into account the effects of low temperatures. The outcomes of this research are the basis for future experimental and numerical efforts meant to improve the design of MSFRCs subjected to low temperatures during service conditions.

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Serviceability performance of FRC columns under imposed displacements: An experimental study

Cited by 9 publications

References 15 publications

Structural response of a fibre reinforced concrete pile-supported flat slab: full-scale test

Structural response of a fibre reinforced concrete pile-supported flat slab: full-scale test

Influence of recycled steel fiber on the properties of self-compacting concrete with high fly ash content

Effects of Low Temperatures on Flexural Strength of Macro-Synthetic Fiber Reinforced Concrete: Experimental and Numerical Investigation

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