Bond-slip behaviour of steel fibres in concrete after exposure to elevated temperatures

Abdallah, Sadoon; Fan, Mizi; Cashell, Katherine A.

doi:10.1016/j.conbuildmat.2017.02.148

Cited by 67 publications

(26 citation statements)

References 29 publications

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“…For this temperature, the peak stress occurs for a lower strain and it is followed by a nearly linear softening branch. Similar results were obtained by Abdallah et al [40] who found that the steel fibers stress-strain behavior remained almost unchanged up to 200°C. The strength was practically unchanged but the stiffness and overall shape of the stress-strain response changed between 300°C and 400°C.…”

Section: Experimental Methodssupporting

confidence: 90%

“…The strength was practically unchanged but the stiffness and overall shape of the stress-strain response changed between 300°C and 400°C. The strength greatly decreased and the shape of the stress-strain response significantly changed for higher temperatures [40]. Fig.…”

Section: Experimental Methodsmentioning

confidence: 96%

“…Although there are experimental results from pull-out tests [33] available in the literature and the deterioration produced by other phenomena like corrosion [34,35] or alkali silica reaction [36][37][38][39] has been studied, the effect of temperature on a single fiber pull-out has usually been indirectly analyzed from FRC tension tests results [31,38,39]. Recently, Abdallah et al [40] studied the pull-out behavior of steel fibers embedded in concrete after exposure to elevated temperatures. They found that pull-out behavior of straight fibers is significantly influenced by high temperature.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Steel fibers pull-out after exposure to high temperatures and its contribution to the residual mechanical behavior of high strength concrete

Ruano

Isla

Luccioni

et al. 2018

Construction and Building Materials

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Section: Experimental Methodssupporting

confidence: 90%

Section: Experimental Methodsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Steel fibers pull-out after exposure to high temperatures and its contribution to the residual mechanical behavior of high strength concrete

Ruano

Isla

Luccioni

et al. 2018

Construction and Building Materials

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show abstract

“…Numerous experimental investigations on the pull-out behaviour of pre-deformed fibres have been carried out to clarify the influence of fibre geometry on the bond-slip response (Isla et al 2015;Tuyan and Yazici 2012;Soetens et al 2013b;Robins et al 2002). It has been shown from the pull-out test that a hooked end fibre is an effective method for improving the bond-slip resistance (Abdallah et al 2017a).…”

Section: Introductionmentioning

confidence: 99%

Comparisons Between Pull-Out Behaviour of Various Hooked-End Fibres in Normal–High Strength Concretes

Abdallah

Rees

2019

Int J Concr Struct Mater

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In this paper an elastic-plastic response has been developed to predict the pull-out behaviour of various hooked end fibres embedded in normal-high strength concretes. An elastic-plastic moment expression has been proposed to represent the partially plastic hinge formed during pull-out. The proposed formula has been incorporated into a frictional pulley force analysis in order to predict the applied loading at each stage of pull-out. This prediction accounts for the variation of geometrical and tensile properties of the fibres as well as concrete strength. The proposed model is validated against experimental pull-out results of various hooked end fibres.

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“…Dramix hooked end steel fibres of improved geometry, namely 4D (double hooked) and 5D (triple hooked) were recently introduced and currently are used extensively in concrete structural applications. These fibres are designed to increase the capacity of a concrete structure to bear complex loading including tension, compression, and shear [20,21].…”

Section: Introductionmentioning

confidence: 99%

Understanding the effects of hooked-end steel fibre geometry on the uniaxial tensile behaviour of self-compacting concrete

Abdallah

Rees

Ghaffar

et al. 2018

Construction and Building Materials

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A series of uniaxial tensile tests on cylinders made from steel fibre reinforced selfcompacting concrete (SFR-SCC) have been carried out to investigate the influence of fibre geometry and the combined effect of fibre content and distribution on the post-cracking behaviour. Three types of commercially available hooked end fibres (3D (single hooked), 4D double (double hooked) and 5D (triple hooked)) have been used in this study, which are added to the concrete mixture at two fibre dosages (0.5 and 1% by volume). The experiments show that the post-cracking strength increases significantly (P˂ 0.05) with the increase of fibre content for all mixtures. The combination of a unique shaped hook of high tensile strength demonstrates an optimum effect on the failure mode of concrete cylinders in which peak and post-peak strengths are raised. Notably, strain-hardening behaviour is observed only for cylinders reinforced with 5D hooked end fibres. A correlation between number of fibres exposed on fractured surfaces and post-cracking behaviour is established.

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Bond-slip behaviour of steel fibres in concrete after exposure to elevated temperatures

Cited by 67 publications

References 29 publications

Steel fibers pull-out after exposure to high temperatures and its contribution to the residual mechanical behavior of high strength concrete

Steel fibers pull-out after exposure to high temperatures and its contribution to the residual mechanical behavior of high strength concrete

Comparisons Between Pull-Out Behaviour of Various Hooked-End Fibres in Normal–High Strength Concretes

Understanding the effects of hooked-end steel fibre geometry on the uniaxial tensile behaviour of self-compacting concrete

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