Effect of steel fibres on mechanical properties of high-strength concrete

Holschemacher, Klaus; Mueller, T.; Ribakov, Yuri

doi:10.1016/j.matdes.2009.11.025

Cited by 283 publications

(146 citation statements)

References 9 publications

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“…[9], carbon fibres [10], synthetic fibres (e.g., polypropylene, polyethylene, polyvinyl alcohol, etc.) [11], and metallic fibres ( [12][13][14][15][16][17]) are amongst the most used fibre-shaped reinforcements. Nevertheless, over the last few years, the high cost of the commercial fibres has promoted the use of recycled metallic waste [10,18] to develop new cement-based materials that are more resilient [12], environmentally friendly [13], and with advanced properties [18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Metallic Waste Addition on the Physical and Mechanical Properties of Cement-Based Mortars

et al. 2018

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Featured Application: The development of advance construction materials based on waste valorisation is a reality. The cement-based mortar with recycled metallic waste presented in this study could be potentially used as a building material with crack self-monitoring properties.Abstract: This paper investigates the influence of the type and amount of recycled metallic waste on the physical and mechanical properties of cement-based mortars. The physical and mechanical properties of cement mortars, containing four different amounts of metallic waste (ranged 4 to 16% by cement weight), were evaluated by measuring the bulk density, total porosity, flexural and compressive resistance, and dynamic elastic modulus by ultrasonic tests. All the properties were measured on test specimens under two curing ages: 7 and 28 days. Additionally, the morphological properties and elemental composition of the cement and metallic waste were evaluated by using Scanning Electron Microscopy (SEM), energy dispersive X-ray spectroscopy (EDXS), and X-ray fluorescence (XRF). Main results showed that the addition of metallic waste reduced the bulk density and increased the porosity of the cement-based mortars. Furthermore, it was observed that flexural and compressive strength proportionally increased with the metallic waste addition. Likewise, it was proven that elastic modulus, obtained by compressive and ultrasonic tests, increases with the metallic waste amount. Finally, based on a probability analysis, it was confirmed that the addition of metallic waste did not present a significant effect on the mechanical performance of the cement-based mortars.

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Section: Introductionmentioning

confidence: 99%

Effect of Metallic Waste Addition on the Physical and Mechanical Properties of Cement-Based Mortars

et al. 2018

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“…Steel, glass, carbon, wood, synthetic and natural fibers are used for this purpose. The inclusion of fibers in concrete substantially improves many of its engineering properties such as tensile strength, flexural strength, fracture toughness, resistance to fatigue, impact, wear and thermal shock [2][3][4][5][6][7]. The most important effect of fiber inclusion is to prevent crack propagation in concrete.…”

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confidence: 99%

Effects of fiber strength on fracture characteristics of normal and high strength concrete

Aydın

2013

Per. Pol. Civil Eng.

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IntroductionPlain concrete is a brittle material with low tensile strength and strain capacity. This undesired behavior can be improved by inclusion of short discrete fibers into the matrix which prevent or control initiation, propagation, or coalescence of cracks [1]. Steel, glass, carbon, wood, synthetic and natural fibers are used for this purpose. The inclusion of fibers in concrete substantially improves many of its engineering properties such as tensile strength, flexural strength, fracture toughness, resistance to fatigue, impact, wear and thermal shock [2][3][4][5][6][7]. The most important effect of fiber inclusion is to prevent crack propagation in concrete. The extension and propagation of microcracks that occur due to the internal stresses in concrete are prevented by stress transfer capability of randomly distributed fibers [8][9][10].The performance of steel fiber reinforced concrete (SFRC) depends on the properties of concrete and the fibers. The aspect ratio (length/diameter), volume fraction and distribution of fibers influence the performance of SFRC [9,11]. Fiber efficiency is mainly controlled by the resistance of the fibers to pullout, which in turn depends on the bond strength at the fiber -matrix interface. The pull-out type of failure is gradual and ductile when compared with the more rapid and possibly catastrophic failure that may occur if the fibers break in tension [12]. Since the high strength concrete is more brittle than normal strength concrete [13,14] fiber performance in high strength matrix becomes more important parameter. Bayramov et al. [11] have examined the fracture surfaces of SFRC after splitting tensile test and reported that the fibers (tensile strength of 1050 MPa) with the aspect ratio of 65 (l/d = 65) were pulled out of the matrix while the fibers with the aspect ratio of 80 (l/d = 80) were broken in the concrete matrix strength of 60 MPa. Later,Şahin et al. [15] have investigated the effects of steel fiber strength (tensile strengths of 1100 and 2000 MPa) on mechanical and fracture properties of high strength concretes. They have reported the significant influence of fiber tensile strength on fracture energy and characteristic length of high strength concrete for the aspect ratios of 80 and 85. The effectiveness of tensile strength of steel fibers in crack bridging performance of high strength SFRCs has been shown in this study for these aspect ratios. Although

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“…The study of Holschemacher et al (2010) Ramadevi et al (2013); G. Kotsovos et al (2007); Buyle-Bodin, F. and Madhkhan, M., (2002); Dora and Hamid (2012) ;Ganesan N. et al (2007); Shakya, K. et al (2012) ;Shannag M. et al (2005) and Sreeja M.D. (2013).…”

Section: Introductionmentioning

confidence: 99%

“…Although concrete presents good compressive strength, it is a brittle material and does not reach big unit deformations for high stress levels. According to Holschemacher et al (2010), efforts have been made to improve this characteristic through additions allowing the concrete to obtain properties that it cannot develop on its own, both for conventional concretes and heavy-duty concretes.…”

Section: Introductionmentioning

confidence: 99%

Evaluación del comportamiento de vigas en voladizo de concreto reforzado con fibras ante la aplicación de cargas cíclicas

et al. 2015

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Effect of steel fibres on mechanical properties of high-strength concrete

Cited by 283 publications

References 9 publications

Effect of Metallic Waste Addition on the Physical and Mechanical Properties of Cement-Based Mortars

Effect of Metallic Waste Addition on the Physical and Mechanical Properties of Cement-Based Mortars

Effects of fiber strength on fracture characteristics of normal and high strength concrete

Evaluación del comportamiento de vigas en voladizo de concreto reforzado con fibras ante la aplicación de cargas cíclicas

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